Keeping phone number not working, need old number ASAP

[alouette259]

I was a Tesco Mobile customer, switched on Sunday to O2 Sim Only Pay Monthly 

Opted to keep my old number - gave PAC code and said it would be one working day to swap the number. SIM card arrived today, so the swap should've already been done. Number is a new one and I need it to be my old one ASAP as I need to be contactable by work, clients, doctors etc. I can't get my number out to all of these as the numbers are on my old SIM which no longer works as that contract has been cancelled by Tesco 

I asked the live chat thing and they didn't offer any advice 

I completed a form for a SIM swap to keep my old number on the O2 site and just got an email saying the information provided was incorrect. I cannot get another PAC code for my old number because the SIM doesn't work - when I put it into my phone it thinks there's no SIM in it. I asked Tesco and they said it's because I cancelled the contract

What do I do? It's not an option to keep the new number as I'd be out of a job since I don't have the means to get a new phone number out to all my colleagues and clients 

[MI5 · Accepted solution]

@alouette259 

Cancelling your Tesco contract was a mistake I'm afraid. 

Your only hope is asking O2 to contact Tesco to see if they can release your number to them. 

Guide: How to find help & contact O2 

[Martin-O2]

Hey @alouette259 it would be great to her how this turns out for you so please drop in and give us an update once you've spoken to customer services.