Hello @Muhammad Abdullah, welcome at our Community. It´s a pity, that you want to cancel. Can we do something for you to stay with us?

You can find your customer number at your invoice and in “Mein o2” an the “Meino2” App if you are already registered there. But the customer number is not really neccessary for the cancellation.

Please have a look at this link: Kündigung

Kind regards, Ines.

Thank you for your kind answer. I have found my customer number. Thank you

Kinds Regards

Khan

@Muhammad Abdullah My colleague Ines has already left the office and is in a well-deserved break, but I will gladly pass on your kind words to her.

Best Regards Matze