Dopey mate stuck in the 20th Century: I gave you a mobile phone with a SIM in it and £10 credit on it. I did this because ASDA mobile charges 10p/minute for calls, whereas you are stuck on some deal where you pay 40p/minute, but are too lazy/dopey/scared/incompetent to do anything about it.
So, when I next see you and you are still on the old tariff and "your mum has lost the phone I gave you", don't expect more help to be forthcoming.