The Buyer paid via Paypal, an email was sent to them with the promo codes and all the documents attached.
Almost immediately the Buyer claims "services not delivered" and makes a Paypal Claim.
I tried to "work it out" by commenting everything was delivered and 'intangible' on the Paypal site. I also sent another email to the Buyer explaining they received all services (no reply from them).
I won the Paypal claim.
Next day the Buyer does a cashback on his visa card.
The problem is, this has happened a few times before...nearly identical situations.
Each time, I win with Paypal but lose with Visa despite showing my email replies and that services were delivered.
Any advice on how to win this? Or to at least have a system to stop this from happening again?