How long do you think it is acceptable to wait for payment?

8 days total, one week and one day, just like ebay, unless other arrangements are made.

Thanks.

That's also what I think - I just wanted to be sure that there wasn't some kind of other mutual agreement in here before I send out more reminders.

Nope, unless someone asks, and I usually always agree, people buy, people pay.

Yeah of course. I am also reasonable - if people ask, it's no problem.
But I had an order on march the 18th, and have sent 2 invoices - no response at all .

First rule of thumb is to try to send your message from a different email provider (in case the first ones were dropped as SPAM).

If still no reply, you can post a neutral/negative feedback saying something like "No reply after XX days, transaction is cancelled".

I catch all the feedbacks posted, I'll go ahead and cancel it to put the discs back in your shop and re-credit the selling fees.

Julien

Thanks

I will give him/her a few weeks more. Something could have gone wrong.