My partner purchased some baby clothes on eBay in a bundle. The seller emailed his private email address to say that she had already sold the bundle and it's no longer available. She said she has been trying to refund via PayPal but she was unable to do it. So she asked for his bank sort number and the long number. He emailed the seller back, using eBay mail to say he won't be sending his bank details and then she said he was being rude but then suddenly refunded him.
Was she trying to scam him in some way? Her feedback is 100% positive but her last transactions seems to be last year.