So I got a coupon promo from PayPal themselves for like $10, I bought an item that costed exactly $10 and I was surprised that there were no drawbacks to the purchase. In most places, coupons are only valid with that sort of small exceptions that obligue you to do something first before using said coupon (Like a second purchase, or $X amount minimum), so you probably would understand my concern at seeing a $0.00 checkout. I have no cards linked to this account, and when I did the purchase there were no errors. It just went through. Should I worry about this purchase being revoked? Or is it completely fine?