Skip to main content
Warum O2
Warenkorb
Service
Frage

bankverbindung andern

  • January 30, 2026
  • 3 Antworten
  • 22 Aufrufe

I wanted to change my bank account for sepa. But for that I need to register and create account which requires vertragsnummer and personal 4 digit pin . I dont remember my 4 digit pin. How can I change the bank account

my vertrags nummer is :xxxxxxxx


Eidt o2_Daniela 30.01.26, 13:23; personal data hidden & moved from o2 Mobile: Contracts & Tariffs to English o2 Community: Mobile

3 Antworten

o2_Daniela
  • Moderatorin
  • January 30, 2026

Hello ​@Marsy,

we're glad to hear from you again. Since this is a public community, I have concealed the contract number in advance. Please refrain from posting any personal data here.Your personal customer number can be found in your contract documents. If you no longer have these, you can have them sent to you by mail. Alternatively, you can request your bank details by mail using the appropriate form. You can find the form here. Fill this out once and send it to us by mail or fax.😊

Best regards
Daniela


Bumer
Legende
  • January 30, 2026

@Marsy 

What kind of contract do you have exactly?


o2_Rebecca
  • Moderatorin
  • February 5, 2026

Hello ​@Marsy ,

I wanted to check in and see if you were able to have your bank details changed 🙂 If you need further assistence, please don’t hesitate to let us know 🌼

Kind regards, Rebecca