New iPhone / contract transfer

[MarthaB]

Hi
I’ve had o2 for years & was due for an upgrade (handset was paid off so only paying for use), I found it was cheaper going through car phone warehouse & taking out a new contract. (Still with o2). How do I go about closing my existing / previous contract and transferring the old number over? I thought I needed a pac code but it seems that’s just for network transfers?
Obviously can’t get through to discuss this over the phone as it’s not a priority query, just conscious I now have two contracts!
Any advice appreciated.
Thanks

[MI5]

@MarthaB 

The only way is to call customer service and ask them to migrate your number across which closes your old account.

Not the best time to be doing this tbh Guide: How to find help & contact O2