Finding a solution to the purchasing problem

Hello friends, can anyone help me? I’m having trouble buying anything from the Epic Games website, whether it’s games or Fortnite bundles. Even though I have enough funds on my card and I’ve spoken with Epic Games staff, I can’t buy anything from the store. When I try to buy anything, I get this message: {It looks like something went wrong. For your protection, this transaction was declined. Please try another card or payment method.} I’ve contacted support more than four times, but none of the solutions they offered worked, and I don’t know the real reason for this. Has anyone else experienced this before, and what’s the solution?