[special-K]

That's some good points there. Number 1 is communication is paramount. This and that happens from time to time and it may not be avoidable. But avoiding contact? Don't even think about it,just let the person know. I think there should be solid guidelines for buying/selling (that just natural for me) communication. I've sent people things and never heard another word. This really bugs me. What,you only contact me if there's a problem? You think all I care is I got your money? How hard is it to let me know it arrived? I grew up thinking courtesy was a necessity.
I pay with money orders. I feel obligated to get one and send it that day or first thing the next,depending on what time of day I got their info. That same day I send the seller a message that the money is sent and ask them to let me know when it shows. They tell me when it shows and that the item is on it's way. I reply that I'll let them know when it shows. I let them know when it shows and thank them. This would be the time to let them know if there is an issue. It's so simple and works!