I wonder if it was a phishing email, since he can't send it for 7 days. If he decided to not do the sale with you, you would have rec'd a different type of message. It would have said you and the seller agreed to not complete the sale, and you would have to repond you agreed with this, or he would not get his fees at all. Something is strange here. I would write eBay to see if it was a a "real" email. I hope you didn't have to put in your password to respond to it.
As for some people waiting 14 days before hassling your buyers...that's why we do this type of selling, we are all self employed and we get to decide what works best for each of us. Doesn't mean one way is best for all. I could never wait 14 days. I sell hundreds of items a month, and I just don't have the time to keep track of old 14 day old sales, and then start the dispute. By the time it would be done, it would be close to the month. For sure my other bidders would have moved on and I could not offer them a second chance offer.
My reminders depend on if the buyer has gotten in touch with me. If not, that a reminder goes out on the 3rd day, the non paying on the 7th, and fees to be returned on the first allowable day, if I have not heard from the buyer. In the meantime, they get to respond on the dispute area, or to me if there is a paying problem. If so, then I'd be happy to give more time. No response? Then I move on. I have never gotten a note from anyone that indicated they felt hassled, after over 12,000 sales (and I'm a buyer as well, under a different account).
Both buyers and sellers have obigations in my opinion. The seller to send out the original notice, and contact buyer, and the buyer to let the seller know within 3 days how and if they plan on paying, and when the seller can expect it. I'm pretty fortunate, and have few non payers. I'm more likely to have a buyer pay quickly and then make me sit on the item waiting to see how they wish it personalized. I've got a couple of phone calls to make today.
In some instances, my email to them or theirs to me may have ended up in the spam file.
Since I am not a seller I wasn't aware of all this. My guess is the jerk wanted his fees back then, plus my money. Sure hope he doesn't play games and not send the cd after all this. As far as feedback I am not concerned. I have tons of sellers who never leave any at all. If this one leaves negative- oh well. Can do the same back.