Apparently not. Ebay warns you not to cancel unless you have the refund or have not paid yet.

The seller has now accused me of damaging the frame, via email. Hey, I didn't make the rust magically appear.

I'm not responding. At this point, responses go only thru a third party (ie ebay dispute resolution). He did send his email via the bay, however. Apparently I'm quite duplicitous.

Off to relax and not deal with this for twenty four hours.