(08 Jan 2014, 6:58 am)Dan wrote My mam's still foolish enough to remain on the network. She recently topped up and the voucher didn't work - she has absolutely no idea who to get in touch with because she read some forum posts on their website and it is a vicious circle of blaming anyone and everyone.

I switched back to O2 briefly after I had issues with giffgaff, hoping they would give me a better deal on a contract for being an existing customer (always kept my SIM, don't think I was on giffgaff for that long)... Nope. They weren't competitive with EE's deals at all, so I left 'em.