Your chance: One of the prizes with a total value of 5.000€ in Bitcoin.

It’s that easy: Invite a friend with our Refer-a-friend program or be referred by a friend during the promotion period. The prize is are: 

1 x 2,000 euros in Bitcoin,

2 x 1,000 euros in Bitcoin,

2 x 500 euros in Bitcoin.


Of course the referrer receives his bonus of 10€ in Bitcoin and the referred person his 10€ in Bitcoin with ourRefer-a-friend program. So you have the chance to profit twice!

It works that simple:

Log in

Log into the BISON App as usual and go to "Settings". Under "Other" you will find the category "Invite friends". A pop-up appears, confirm your participation in the lottery.

Share your link

Copy your personal invitation link and send it directly to your friends, relatives and acquaintances. Please note: Your personal link will appear, as soon as you have successfully verified yourself in the app and used the app in real money mode.

Invite friends

Your friends click on your invitation link, install the BISON App and register with their email address at BISON. Condition: Your friends can’t have a BISON account yet with the corresponding email address.

Receive 10€ in Bitcoin

Your friends successfully verify themselves through the video identification process, transfer money or Bitcoin to their BISON account, and trade within the first 30 days after registration for at least 50€.* Then you will receive your bonus in the amount of 10€ in Bitcoin. Your friends will receive 10€ in Bitcoin.

After the end of the promotion period, the winner of the lottery will be notified by e-mail.

* You can also transfer a smaller amount of money to your BISON account which will be traded several times.

Participation in the lottery is only possible if the following conditions of participation are accepted and in accordance with the data protection declaration.


The competition starts on 28.04.2020 and ends on 22.06.2020 at 23:59 (promotion period).


You are eligible to participate if you are 18 years of age or older at the time of participation, have permanent residence in Germany and successfully participate in the BISON Refer-a-friend Program in the BISON App during the promotion period. Participation is only possible once.


All BISON users of the BISON App of EUWAX AG who meet the requirements of the BISON Refer-a-friend Program can participate in this competition during the promotion period.* Employees of a company of the Stuttgart Stock Exchange Group are excluded from participation.


All persons who take part in the competition during the promotion period have a chance to win 1x 2,000 euros in Bitcoin, 2x 1,000 euros in Bitcoin and 2x 500 euros in Bitcoin. The draw will take place at the end of the promotion period. The winner will be informed by e-mail.


In order to be able to credit the winner with the prize, it is necessary that we transmit the name and e-mail address to blocknox GmbH, Börsenstraße 4, 70174 Stuttgart (“blocknox”) and that the data is processed there for this purpose.


The organiser of the competition is EUWAX AG, Börsenstraße 4, 70174 Stuttgart.


We reserve the right, in the event of a change in the legal situation or jurisdiction or due to a court prohibition, to exchange the respective announced winnings and replace them with other winnings and prizes, to change the respective game sequence or to cancel the lottery altogether. In such cases, any winners who have already been determined are not entitled to any claims against EUWAX AG.


We also reserve the right to terminate the competition prematurely or to change or amend the conditions of participation, as long as this is necessary in the interest of simple and secure processing, especially to prevent abuse, and you are not disadvantaged by this in bad faith.


Notes on data protection

We take the protection of your personal data very seriously and adhere strictly to the rules of data protection. The following declaration gives you an overview of how we guarantee this protection and what kind of data is collected and processed for what purpose in connection with this competition.


Collection, processing and use of personal data

In order to carry out the raffle within the scope of this competition, we use the personal data you provided when registering the BISON App. Except for the transmission of winner data to blocknox for the purpose of providing the prize, no unauthorized transmission of data to other third parties will otherwise take place.


Revocation, changes, corrections and updates

You have the right at any time to information about the data stored about your person, their recipients and the purpose of the data processing. Information about the stored data (Art. 15 DSGVO) can be obtained from the EUWAX AG data protection officer. In addition, you have the right to correct incorrect data (Art. 16 DSGVO) and – insofar as this does not conflict with any statutory retention obligation – to block and delete your personal data and to object to processing (Art. 17, 18 and 21 DSGVO).

You can revoke your consent to the processing of personal data at any time with effect for the future. You can send your objection to our data protection officer by e-mail to or in writing to EUWAX AG, Börsenstraße 4, 70174 Stuttgart

Further information on the general data protection information of EUWAX AG can be found at:


* Terms & conditions for the BISON Refer-a-friend program

By participating in this program, you are giving consent to the following terms and conditions:

All BISON app users from EUWAX AG who have successfully completed the registration process

and are activated (“BISON users”) can participate in the BISON Refer-A-Friend program. A subsequent registration and activation does not entitle participants to participate.

Employees of a company belonging to the Stuttgart Stock Exchange group are excluded from participation.


In exchange for the successful referral of a new customer, the BISON user will receive a premium. New customers can only be adults who are not yet activated users of EUWAX AG’s BISON app. The premium received is for completing a contract with EUWAX AG, as well as other related contracts with blocknox and solarisbank, permitting use of the BISON app. A new customer is considered referred if, directly upon referral, they registered and activated with EUWAX AG as a BISON app user using a link provided to them. Furthermore, it is necessary to open a BISON credit account with our partner bank, solarisBank AG, and to make a deposit in EURO to the BISON credit account. It is also necessary to generated a specified trading volume within the 30 days after the registration. A new customer can only be referred once; multiple referrals are not possible.


The BISON user receives a notification from the BISON app as soon as the new customer meets the necessary conditions. The premium will then be credited to the BISON user in their BISON account after those conditions are met.

It is not permitted to disclose the provided promotional link to unknown or unspecified groups of people (i.e. through publications in internet forums, voucher platforms, etc.) or to use it in the context of affiliate or comparable activities. In the event of violating these guidelines, EUWAX AG reserves the right to exclude the respective advertiser from the premium program and/or to reclaim their premium.

EUWAX AG reserves the right to change or amend both the BISON Refer-A-Friend program and the conditions of participation, as far as they deem necessary in the interest of preserving simple and secure processing, particularly to prevent any misuse, provided that the participants are not disadvantaged by this contrary to good faith. In the event of a change to the conditions of participation, the conditions that were in place at the time of the new customer’s registration and activation as a user of the BISON app are decisive.

This offer is only valid in Germany and is non-binding; it is subject to alterations without notice.


Please note the following information:

Referral messages within the BISON Refer-A-Friend program contain advertising content. Recipients may feel bothered by such messages. Before sending one, you must therefore ensure that the recipient has given their consent to receiving such messages and that you are able to prove this. If recipients have not given their consent, no referral messages may be sent as part of the BISON Refer-A-Friend program. If a message is nevertheless sent without any prior consent, recipients can take legal action against the act. According to the conditions of participation in the BISON Refer-A-Friend program, the sending of referral messages without prior consent from the recipient leads to a user’s exclusion from premium entitlement.


In order to prevent any misuse, EUWAX AG will store the identification data (tax ID) of each user for a period of one year. If third parties establish that their rights have been violated through the sending of referral messages in the context of this offer, EUWAX AG will release the identification data for legal prosecution. By sending the message, you disclose that you are a EUWAX AG customer.


Depending on the settings of your email client, messages may be sent unencrypted. 


If you are using a messenger service to send the referral, please take note of the data protection and usage information affiliated with that provider. Depending on the messenger service, third parties may take notice of the content of the transmitted data, and the provider may then grant themselves rights of use to said content. Depending on the messenger service used, it is also possible that transmitted content is sent unencrypted.