Payment Problem

So, here it goes, just today, my brother who is living in the US, wanted to surprise me with a gift card for the game, so he casually went to gamestop to buy a rixty card but unfortunately he could not find any, out of ignorance he bought a gamestop card, scratched it and came to surprise me, i thanked him alot and was really overwhelmed but the problem now that z8games does not accept that gift card and now am stuck and can not get my vip weapon, he tried to return it but noone accepted it at the store as it was already scratched!
Could someone help me? or Advise me on what should i do?
thanks in advance

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