Gameflip help me !!!

So last week I bought a gift card and I got the code and everything went smooth but today when I wanted to buy a gift card it asked for a four digit code although it took the money from the credit card and I didn’t get my code, I canceled my order at that moment but I didn’t get my refund it’s asking me for the verification code I have sent an email to gameflip but it takes 1 to 2 business days I either want my refund or give me my code!!!