Most auctions are completed within a couple of days after they have ended. Personally, I typically wait for up to 7 days. If I have not heard from the person within 7 days, that unfortunately means negative feedback. If I have heard from the person within the 7 days, I typically expect the transaction to be completed within 14 days. I hope you find these details helpful.
PS: If you have further details on the auction in question, the e-mail problems etc., PM me.