Actually, I am not going to sell any digital products, its a service, once the payment reaches me, then only I am gonna do the work, I am not going to cheat anybody. So, I am bit worried, someone still charge-back after completion of the work.
Yeah.. people do that as well. If it's for a fairly large amount, this is what I do now.
I never just tell the guy "well ok here's my PayPal" No no.. I send a money request to this person and I will call this person up to make sure they're who they say they are.
When I was trying to sell my World Of Warcraft account there was a tidy little guide written on a BST (Buy/Sell/Trade) forum for WoW.
Step #1: Have this said person, go to whatsmyip.org and note down their IP address.
Step #2: Have this person give you their # and call them up on the number given. (Preferably a land line)
Step #3: Send THEM a money request for the said amount
Step #4: In the note or in an e-mail, (from the same Paypal e-mail) they are to send you an e-mail stating "I (first and last name) have authorized this transaction for (enter amount). For verification purposes my landline is (number) and my IP address is (Their IP). I hereby give up my rights to a charge back and stating that the amount sent is valid.
I know those aren't the exact words, but that's the idea of what was said. Now if you're dealing with smaller amounts, that's a lot to go through for a lot of small transactions, but if you could, I would still send them money requests.