Hi, Same thing happened to my first remittance on E-Bay. I had entered customer ID of my bank unknowingly as my bank account number in paisapay.
Going by what you are asking this cannot happen in paypal because they verify your bank account my making some deposits in your account which you have to enter in their account confirmation forms.
I think you have done the error in paisapay itself.If that account number is correct with a valid name of someone else you cannot do anything. But if the account number is wrong/mistyped with your correct name Dont worry it will take a week or so . you will get a mail from ebay that the account number is invalid.
Once that mail comes you will get your money in next remittance cycle.
I did the same mistake, but corrected it soon. Send me a message if you feel like talking as I dont hang in here quite often.
Regards,
Linus Studios