My new cards didn't work?

I have two unused PSN cards that shouldn’t have been expired and were bought very recently. I cannot do a refund for some reason on these gift cards…I’ve scoured up and down for the “I need to cancel the order” button but I seem to not be able to do it…something going on here?

GIFT card YOU BUY SHOULD BE REDEEM INSTANTLY OTHERWISE ITS NOT GAMEFLIP PROBLEM,.!!!