Legal Information and Claims

Registration at the Bank of Spain
  • Registration at the Bank of Spain
  • Corporate Governance and Remuneration Policy
  • Claims and Customer Services

Zinia is a registered trademark of Open Bank S.A., a financial institution registered in the Banks and Bankers Register of the Bank of Spain and at the Trade Registry of Madrid on page 202, volume 5308, sheet M-87030.

  • Registered office: Plaza de Santa Bárbara 2, 28004, Madrid, Spain
  • Telephone number: +49 (0) 69 945 189 175
  • Fax number: +34 913 421 050
  • Email address:
  • Trade name: Openbank
  • Tax ID number: A-28021079
  • Legal business name: OPEN BANK S.A.
  • Bank code: 0073

Openbank, in its normal course of business, is supervised by the following institutions, among others:

  • European Central Bank and Bank of Spain.
  • National Securities Market Commission (CNMV).
  • PriceWaterhouseCoopers, S.L. (external audit).
  • Banco Santander, S.A. (internal audit).
  • National Tax Administration Agency.
  • National Social Security Institute (INSS).

The internal audit is carried out by Banco Santander, S.A.

  • Open Bank S.A., is a member bank of Spain's Deposit Guarantee Fund for Credit Institutions.

Shareholder structure

Name of shareholderNumber of sharesPercentage
Banco Santander, S.A.172,782,81899.9994212 %
Cántabro Catalana de
Inversiones, SA.

Want to get in touch with Zinia?

You can contact the Zinia Customer Service Department through the following channels:

  • Telephone number: +49 216 1621 0029, Monday to Friday from 9 a.m. to 5 p.m.
  • Email address:

Zinia will inform you of the status of any claim or complaint made within 48 business hours.

1. Claims and Customer Services

In the event you’re not satisfied with the response provided by our Customer Service Department, you can contact the Claims and Customer Service Department of the Santander Group using the following contact details:

Claims and Customer Service of the Santander Group:

Post: Apartado de Correos 35.250, 28080, Madrid

Email address:

Fax number: 91 759 48 36

Telephone number: +34 91 276 21 54 or +34 900 22 32 42

You can find our Customer Service and Customer Ombudsman Regulations here.

2. Customer Ombudsman

The Customer Ombudsman is an independent body and the Santander Group is subject to its decisions. You can submit claims and complaints to the Customer Ombudsman using the following contact details:

Mr. José Luis Gómez-Dégano and Ceballos-Zuñiga

Apartado de Correos 14019

28080 Madrid

Fax: +34 91 429 23 19

You can find the Customer Ombudsman Regulations here.

3. Bank of Spain

In the event you’re not satisfied with the response provided by our Customer Service Department or the Customer Ombudsman, or a period of one month has elapsed since the complaint or claim was submitted without response, you can submit the complaint or claim to the Bank of Spain in writing or online:

Banco de España
Departamento de Conducta de Entidades
C/Alcalá 48
28014 Madrid

To submit your claim or complaint to the Bank of Spain online, click here.

Please note that current regulations require customers to submit any claim or complaint to the Customer Service Department of the bank or the Customer Ombudsman, which acts independently as regards the principles and guidelines applicable to its duties, before it can be submitted to the Bank of Spain.

4. Complaint forms

Complaint forms are available at Openbank branches:

Paseo de la Castellana, 134, 28046 – Madrid

Plaza de Santa Bárbara, 2, 28004 – Madrid

Telephone number: +34 900 22 32 42

You can also download and submit the complaint forms via the following link:

In accordance with the provisions of Regulation (EU) No. 524/2013 of the European Parliament and of the Council of 21 May 2013, on the resolution of online consumer disputes, you can choose to resolve any dispute or discrepancy regarding the services provided by accessing the online dispute resolution platform of the European Commission here: