i'm still waiting on my network unlock code from orange so it won't be for a few days anyway, I want to be perfectly sure that a new T-Mobile SIM will work in my phone before I start the cancelling process, give orange just one thing to screw up at a time
Thanks for your advice mate. Basically I'll arrange for a final bill to be sent when I request my PAC code, and this should in theory end my contract with orange (once I've agreed to pay off my contract months) and once I receive and pay the final bill that'll be that - i'll be a free man so to speak