@Temp20220524B
Easy enough mistake to make, if they sent it to an email address and made a spelling error then the 'wrong' email address could have been your email account and so you received the funds.
As long as you use the 'refund' option (by clicking on the transaction details and using that option at the bottom of that page) and NOT the send money option then you should be ok.
HOWEVER check first on that transaction details page and make sure you were not charged a fee, if you were then you won't get that back so tell the sender you will do a part refund minus the fee element as it was their mistake.
Advice is voluntary.
Kudos / Solution appreciated.
