Bit of an easy one this but ive never had this happen before so im not sure what the process is:

My x10 mini on T-mobile has stopped recognising when the ac adapter is plugged into it so it wont charge. I then tried charging from a usb cable connected to the PC and after a minute or two it did detect the cable but when i put my hand on the usb cable it was warm! Tried another cable same result and the charging port on the phone smells a bit of that electrical burning smell definalty not good.

My phones insured but who do i go and see/ ring about it? Tmobile?
what happens then if its faulty? They send it off for a repair? and then im without a phone for x amout of days or do they lend you one??

Cheers