Find out your own O2 customer number

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Every contract has a customer number. This is given at the beginning and usually lasts for life. It is the same with O2.

A cell phone causes running costs.
A cell phone causes running costs. © Johannes Schätzler / Pixelio

What you need:

  • Contract documents
  • invoice
  • Internet

Research the O2 customer number

There are many simple ways you can get your O2 customer number:

  • Do you receive the invoices by post? Then all you have to do is open this invoice and you will have the O2 customer number. This is on every invoice.
  • If the invoices are only sent to you online, you can log in to the O2 website and search for your O2 customer number there.
  • Before the O2 bill is visible on your account on the Internet, you will receive a notification by email. Your O2 customer number is also noted in this email.

Other ways to find the number

Of course, there are even more ways to find the O2 customer number:

Find out the customer number on eBay

You work for eBay and are requested by eBay to provide the customer number at ...

  • Find your contract documents. At least on the confirmation that you received at the beginning, your O2 customer number is noted.
  • As soon as you have applied for a new cell phone, you will receive a delivery note when the cell phone is delivered, on which the customer number is also noted.
  • You have to pay O2's bills in some way. If you do this by direct debit, the customer number will be noted on the account statements.
  • But even if you always pay the bills individually, then you have most likely given the customer number on the transfer slip. All you have to do is look for it and read off the customer number.
  • If all else fails and you cannot find your O2 customer number, you can call the O2 customer center and ask for your customer number. To do this, you need your Phone number, Have your personal data and possibly the answer to a security question ready.

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