I posted negative feedback on an item I purchased as it was unsuitable for use. The seller didn't accept that it was unsuitable and offered to refund the item only if I paid return postage. (I didn't open a case with eBay as by the time she'd faffed around I didn't have time to deal with it before going away).
Seller has now posted under my negative feedback that it will be removed as she offered me a refund. Can she do that without eBay asking me about it?