Topic: Trying to redeem v bucks cards error on account

Hi can anyone help please I am trying to redeem Fortnite v bucks cards but when I login to epic games it won't let me go through X box just comes up with error message about this is connected to another account is there anyway to rectify this please. When X box first setup up I must of skipped setting up epic games and went straight to playing. Is there anyway that I can do something to redeem cards and not lose my skins that I have already purchased in store with current username.

@Utena-mobile thanks for reply will have to try