Gotta tell you. If I saw that two people had sent money to me through paypal, I would, then and there, immediately start the refund process to one of them.
Now if I don't see it before one had started a complaint, then you have something different. Then you need to get ahold of the person that filed and work it out quick. Either send a money order or whatever it takes. Call ebay/paypal and inform them it was a mistake and you are taking steps to correct it.
If you have time to transfer the money to your bank account, it seems just as easy to start a refund process. JMHO
Now if I don't see it before one had started a complaint, then you have something different. Then you need to get ahold of the person that filed and work it out quick. Either send a money order or whatever it takes. Call ebay/paypal and inform them it was a mistake and you are taking steps to correct it.
If you have time to transfer the money to your bank account, it seems just as easy to start a refund process. JMHO