Daniel 🌻
Natürlich kann und sollte man sich bei Mastercard beschweren.
Wer eine Mastercard grundsätzlich akzeptiert, muss ALLE Mastercards akteptieren.
https://www.mastercard.us/content/dam/mccom/global/documents/mastercard-rules.pdf
Page 236/237
5.10.1 Honor All Cards
EU Countries, Iceland, Norway, and Serbia Only
The following Rules apply with respect to acceptance by Merchants in the EU, Iceland,
Norway, and Serbia of Cards issued in the EU, Iceland, Norway, and Serbia.
- A Merchant that accepts Mastercard Credit Cards must accept all Mastercard Credit Cards
issued in the EU, Iceland, Norway, and Serbia.