I listed about 20 computer games last weekend and sold them all. Two were bought by two users with very similar names, too similar to be different people - e.g percivalpolly2 and percivalpolly.42.
I didn't know how to send a combined invoice when two accounts were involved, so I removed postage from one order and sent a new invoice explaining this. The invoice for the game with the postage has now been paid, but it's been a week and nothing has been done about the other. I messaged them to let them know I was waiting for the other game to be paid for before sending them together, but they haven't replied.
I feel like sending the game they paid for and cancelling the other. Would that be okay?