Okay my problem is, I have a prepaid mastercard, and im trying to buy credits for my account.
I know the playstation store itself doesn't accept prepaid mastercards, HOWEVER i've always gone through paypal with them, and it always works. But this time it just says "unsuccesful transaction" , doesn't give me a reason or anything.
I've also tried looking around for a site that would sell PSN cards for canadian users, but the only one i found (that delivers the code via Email) is PcGamesupply, but they are out of stock (as always)
You will have to ask Paypal why the transaction failed. That isn't the usual error message. Sony has been trying to make its acceptance policy for Paypal as close to the one that it uses for credit cards as Paypal's systems will allow.