This 3g or 4g prepaid cards not used for 6 mths or 1yrs, can use back by topping up the card or can't?
I had a prepaid card that I didn't use for some time. When I put it into my device to try. It didn't work. When I brought it to Singtel Retailer, I was told that it only have a 1 1/2 year life. True or not, I don't know. I simply threw it away.