Here’s what consumers have asked with answers from Epic Games staff and previous consumers.
EPIC Games is a scammers by selling gift cards that are empty with not value. And refusing to credit for what they got paid for.
Only email, and wont acknowledged anything you say other than you won't get a refund
They wont, thats just part of the shady practices they use, they will keep the "community" thinking they will fix it but will give the individual player some automated email of "we're sorry"