10-12-2017 12:09 PM
While I could not really comment on the legality of the e-mail [which could even be a spoof/phishing] wouldn't you be happy to know?
As to what eBay will do I would guess - specifically nothing.
If the item was purchased recently then if within 30 days you can open a "not as described" case with eBay's resolution centre and escalate after 8 days for a refund. If it was more than 30 days and less than 180 days then do the same in Paypal and escalate after just 2 days. If over that time you will need to take some form of action outside eBay.
It is one of the oddities of eBay [etc] that if the seller were to refund outside eBay then he will risk [multiple] defects and possibly a complete ban!