I am an old O2 customer. I ordered a couple of devices in 2021. I want to order a mobile phone. Unfortunately, on entering my details, I get an error that four digit PIN code is not accepted. Can anyone help me to figure out this situation? What is the procedure to reset or gain access to the old code ( forgotten one)?
Edit o2_Bianca: Moved from Apple&iOS to English o2 Community mobile
Hello
do you have access to your mein o2 for these contracts? You would be able to find your 4-digit customer ID code there. Else we only have the option of sending this out by post to you.
Kind regards, Sven
Hello, i don’t remember my 4-digit personal customer code. please help me.
Hello
You can view the number in the Meino2 or we can send it to you by post. Just tell us what you prefer. 
Kind reagrds, Ines.
Hello, its will be better, if you sent it by post.
Hey
I'll be happy to send you the four-digit personal customer code. However, I do not have access to your data at the moment. Please send me your phone number or customer number to
Greetings,
Flo
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
