My cousin wants to buy 4 SIM free iPhone 4s from the Apple retail store - himself, gf, mum and his sister. So I told him that you can only get 2 phones on 1 credit card. So he asked if you can get 2 on one card and then get 2 on another EVEN if it is the same person on the cards or whether it is strictly one person / one credit card? Anyone in the UK tried this? Would like to know the outcome - thanks!