20-06-2018 7:42 AM
If your buyer opens a return request, they have to return the item, they need a tracking number or the 16 digit number from their proof of postage , to enter into the case details, to prove they have posted the item to you.
If they do not have the above numbers, meaning the item was not posted, they will not win a case, and the case times out in your favour after 30 days.
eBay do not recommend partial refunds, this s purely between you and the buyer to either agree, or disagree on.