Horrible service from game and their employees

I paid 1000 rand on July 16 this via banking app for my game store account, they called me saying they didn't receive payment, i went to the bank and retrieved banking statements and inquired if payment was successful and it was. I subsequently went to the store email the statement, i later emailed, aomeone again from rcs called and i emailed but there's still no change and when I try to reach them they send me on a wild goise chase, I'm upset and angry because they will blacklist me and i have to pay more money to clear my name