Confirmation emails not being sent when a certain service is clicked.

Hi Everybody,

So I have been having a lot of trouble with this plugin lately and after a fraught 24hrs, its mostly working the way I would like it too.

But not quite, I have the calender set up so that when you click a service option, the drop down says to pay with cash or to pay with card.
If you click pay with card, everything works just fine and confirmation emails are sent.

If you with pay with cash, while the site tells me that I have booked, I get no confirmation emails at all.

Auto Confirm is yes, and all the cache options are no.

Anybody know what is going on?

Thanks in advance