I lent my bali phone to a friend, which had xl sim with credit, which she topped up in Bali no probs, went on to KL, bought top from 7 eleven the receipt says "Celcom Air RM30", however, this doesn't seem work on the phone,
Can anyone tell me if XL and Celcom are linked in anyway?, I'm thinking they are different phone providers and she has bought the wrong one, Any clues?