O2

Finally got to talk to 'live chat' but still a tad exasperated! Can someone tell me the difference between 23336 o2travel and21300 travelon thank you.

A couple of weeks ago I went on live chat to ask how to change my contract SIM for a PAYG SIM, keeping my old number, as I was going abroad. As I had left it late and wouldn't be able to wait for it to be posted out I was told I could go to an O2 sto...