Yeah you should try to get what you can out of these guys- they make an absolute fortune. I don't know how it would work over there, but second year in a row now I've just phoned up my network to enquire about taking my number elsewhere to another . Twice they ask me why, and I simply told them I wanted a new phone and saw a great deal at another place and twice I've got it for free! Getting a new phone's quite easy, but keeping the same number and same network without paying over the odds for a new handset is tricky, so if they think they're losing a customer over the cost of a £50 upgrade then for them it's not worth it... The reason I wanna keep with the same network is vodafone has the best coverage (not just in UK), and every year I get discounted line rental for my loyalty. The guy on the phone offered me £10 off the anytime 200+ 50 texts (£15/month instead of £25) and I didn't even have to ask!!