I had a Blackberry on contract, when it ran out I changed to a rolling contract that cut my price to just under half, retaining the blackberry. Just had a problem with the thing charging (or not as the case may be).
Phoned VM with the intention of changing to a PAYG but after a small chat have taken a 24 months contract at £6 per moth for a ZTE. Ok its not the best in the world but suits my needs.
Well pleased