Client cards and credit cards Client cards and credit cards
Client cards and credit cards
You can use your giro/debit card and Mastercard to obtain cash at any time and in any place. Depending on the merchant acceptance and card, you can of course also pay for your purchase directly on site or when shopping online.

Our cards

Our Mastercard® und debitcard® also offers you the special advantages of a credit card that can be used globally, with the appropriate level of security. To use your cards in e-commerce, simply register your cards here and use the new TransactVerify app.

Blocking hotline

available 24 hours a day, seven days a week including public holidays.

Domestic (toll-free)
Tel. 0800 588 78 25

International and from mobile phone networks
Tel. +49 201 3101-102

Online claims portal

Note on entry: At the beginning, an individual insurance policy number is requested: Please select the option "No insurance policy number received" below to start with the claim notification. In the further course, the following data should then be entered in the "Supplementary information" field:

  1. the name of the card-issuing bank = M.M.Warburg & CO
  2. the first six and last four digits of the credit card number (example: 123456######1234)

Online claims portall

Exchange rate

Click here to look up the exchange rates used for payment transactions with your card that were made abroad.

Look up exchange rates

Debitcard Mastercard® registration
Debitcard Mastercard® 3-D Secure

The new app TransactVerify

Innovative and convenient application with the following functions:

  • Approval of eCommerce transactions through Mastercard® Identity Check™
  • Online credit card information to access your digital credit card statements
  • Display of transactions made with your credit card
  • Control of the current credit limit
  • Immediate information on card transactions made via push message

User Guide   FAQ

Download the app

Scan the following QR code, download the new app directly from the App Store or Google Play Store and register directly and easily.

Download for iOS     Download for Android

Mastercard® Identity Check™

We recommend the new TransactVerify app. If you do not want to do this, you can continue to use Mastercard® Identity Check™ for the mTAN process.

Registration

Credit card information online

The eStatement tool for retrieving card statements can be used by our existing clients until September 30, 2024.

We recommend switching to the new TransactVerify app before September 30, 2024.

Register for credit card information online
Support

You have problems using credit card information online? Then please write an e-mail to kreditinfo.online@fiserv.com.

First Data will be happy to assist you.

Download notes

Application notes:
Application notes Mastercard® Identity Check™ registration

 Application notes for credit card info

Confirmation of Insurance Cover:
Confirmation of Insurance Cover Mastercard Gold

Confirmation of Insurance Cover Mastercard Business Gold