ok i tried searching to see if someone had this prob before, but there were so many hits i got tired after the 3rd page.
 
anyway, problem is thus:
 
cannot leave feedback if there is no valid ad url. as in, someone PM'ed me directly in reply to my WTB ad. therefore, there was no for sale ad, and there was no post in my WTB ad, since the PM was direct with no additon to the original post.
 
please let me know how to proceed.
 
i can:
 
1) use my WTB ad as the basis for the ad url
 
2) would be nice if I could just type in a random title instead of requiring a valid ad url
 
thanks.

I suggest using option #1. Entering feedback for the seller is in directly related to your WTB ad.

Option #1 would be the way to go.