I've got an iPhone 5S that is locked to Vodafone UK. I'd like to use it on Tesco Mobile so I'll need to get it unlocked. Before I spend £20 + on unlocking it, would any kind person happen to have a Vodafone UK contract that they have had for more than a year, that I could use to unlock the iPhone? It won't cost you or me anything, as long as the contract has been held for more than a year. If anybody could do this, I would be very grateful.