Found 2 SIM cards
 

cleaning out some stuff found a vodaphone and a O2 card. do i have to have the cards i believe i used to use to top up or can i walk into a retailer in london and give them the SIM to top up?


cheers

You can just get a top-up voucher from a branded store or most any convenience, petrol station or grocery store. They have a number that you will key into your phone to increase the credit.

That is the "old fashioned way", but last I checked, it still worked.

Most now have the swipe cards which makes it easier, but no company is going to turn down your money.

nice, ill try it next week, i have an unlocked phone, ill go see how much money if any that these cards may have

cheers

But be careful. Some companies expire the SIM cards after a certain time of non use. Like Orange does after a year. TelCel Mexico does after 270 days I believe

i guess we will find out when i land :) thanks for the advice