Legal Information and Claims

Registration in the Bank of Spain
Registration in the Bank of Spain
Corporate Governance and Remuneration Policy
Complaints and Customer Service

OPEN BANK S.A. is a bank registered in the Registro de Bancos y Banqueros [Banks and Bankers Register] of the Bank of Spain (Trade Registry of Madrid, page 202, volume 5308, sheet M-87030)

  • Registered Office: Plaza de Santa Bárbara 2, 28004, (Madrid).
  • Telephone: +34 91 177 33 10
  • Email:
  • Trade Name: Openbank.
  • Tax ID No.: A-28021079
  • Name: OPEN BANK S.A.
  • Bank Code: 0073.

In its activity, Openbank is supervised, among others, by the following institutions:

  • European Central Bank and Bank of Spain
  • National Securities Market Commission (CNMV)
  • PriceWaterhouseCoopers, S.L. (External Audit)
  • The Spanish Tax Authorities
  • National Social Security Institute (INSS)
  • The internal audit function is outsourced to Banco Santander, S.A.

OPEN BANK, S.A. forms part of the Deposit Guarantee Fund for Credit Institutions.

Shareholder structure

Name of the shareholder No. of shares Percentage
Banco Santander, S.A. 172,782,818 99.999994212%
Cántabro Catalana de
Inversiones, SA.
10 0.000005788%


This information can be downloaded here.

Would you like to get in touch with Zinia?

You can contact our Customer Service through the following channels:

- By telephone: +31 (0)30 7007 909, Monday to Sunday between 10 a.m. and 5 p.m.

- By sending an email to


In the event of a dispute between you and Zinia on any matter relating to the Service, you can contact Zinia by emailing: For complaints, please contact:

You can also contact our Claims and Customer Service:

- By email to:

- By post to Claims and Customer Service (Reclamaciones y Atención al Cliente), Apartado de Correos 35.250, 28080, Madrid (Spain).

- By post to the office of the Customer Ombudsman (Oficina del Defensor del Cliente) of the Santander Group, Apartado de Correos 14019, 28080 Madrid (Spain).

If you feel that Zinia has not resolved your complaint to your satisfaction, you may submit your complaint to the Complaints Service of the Bank of Spain, at: Calle Alcalá, 48 - 28014 Madrid.