Screwed?

I might be in trouble – my won auction has disappeared from “my eBay” and since the end of the auction at 6:00 PM Eastern last night, I’ve heard nary a word from the seller. Fishy? I’m contacting eBay/PayPal now to retract my bid and cancel payment. From the item listing:

 Payment must be made immediately upon auction’s end.  Tickets will ship immediately upon payment.

Seems a bit hypocritical, yes? Expects IMMEDIATE payment but can’t respond in 16 hours from the end of the auction? He had good ratings too. Stupid eBay.