Does no one on here ever talk to one another? If I were spending 300 notes (maybe) on, for instance a fork, then I’d want a telephone number for a pre-purchase chat. Shifty characters can usually be found out this way.
I’d give 2-3 days then begin to get public (initially in a please call me kind of way).
As stevede experienced, these things can get sorted. I sold a frame that had a crack – which I had no idea about because I’d bought it on here and then bought a full bike version of the same thing. Hence the frame was never touched and remained in the box. When the buyer called, I simply refunded him before searching out the seller (to me in the first place) on here. The crack was visible in the pictures he had put up online so he also refunded me. All conducted in a very civilised way.