Ok that obviously means that they have not read the PM, you do find a lot of sellers just become a member in order to place an advert so they don't tend to look at the forums or to see if they have any messages.
Regarding the e-mail, this is taken from Neils explanation in the other thread which is why they are not in your sent box on your own computer.
"The emails aren't sent via your email provider, they are sent by our system.
This means they don't show up in your outbox and they do just 'disappear' without leaving a trace, there is no way you can tell if it has failed to send or not."
If you want to send another e-mail that you can keep track of then do as I suggested in the other thread
Edited By JasonB on 07/03/2015 08:09:29