I have tried to redeem a $50 gift card that was used as an enticement to keep my service after a $10 increase in my bill (which came without explanation). This incentive is borderline fraudulent, since hundreds of customers seem to be unable to redeem the so-called gift card as well. That said, how do I go about redeeming this? I've tried for months and either got error messages ({"STATUS":"ERROR", "DETAILS":"missing vz_jwt"}) or my account cannot be found (supposedly), even though I should have 2 cards in my account.