Each contract has a different log in so you need the log in details for the other account.
Once you have these details you can combine both contracts under one account log in.
Call customer service if you don't have the details or check the emails that were sent when the contract was set up.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
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