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Wholesale Banking

Are you unsatisfied with our service?

Do you still have questions? Did we do something wrong? Do you feel unfairly treated?

Please let us know if you are unhappy for any reason

If you are not satisfied, please do not hesitate to contact us
in person, by phone, by email or via a letter.

Client Service
Opening hours8:00 am to 5:00 pm CET
Working daysMonday to Friday
AddressING Bank, a Branch of ING DiBa AG
Hamburger Allee 1
60486 Frankfurt am Main
Telephone+49 (0)69/27222-62546
EmailSend a message

Would you like to bring in a neutral third party?

In the unlikely event that we are unable to reach an agreement, you can enlist support from a neutral third party by:

Out-of-court dispute resolution

The bank participates in the dispute resolution procedure of the "German private banks' ombudsman scheme" ( This enables consumers to appeal to the private banks' ombudsman to resolve a dispute with the bank. If the subject of the complaint relates to a dispute over a payment services contract (Section 675f of the German Civil Code), customers who are not consumers can also appeal to the private banks' ombudsman.

More detailed provisions are contained in the "Rules of Procedure for resolving customer complaints in the German banking industry", which can be provided upon request or found online at Complaints must be made in text form (e. g. by letter or email) to the Customer Complaints Office of the Association of German Banks e.V., Postfach 04 03 07, 10062 Berlin, Germany, email:

Bundesanstalt für Finanzdienstleistungsaufsicht

Address in Bonn

Graurheindorfer Straße 108
53117 Bonn, Germany

Address in Frankfurt am Main

Marie-Curie-Str. 24-28
60439 Frankfurt am Main, Germany
Telephone: +49 (0) 228 / 4108-0
Fax: +49 (0) 228 / 4108-123