appointment+ does not send email confirmation to purchaser!

I have been at this for many hrs now. need help. went thru several threads already. 1) I’m looking to sell appointments and for now just trying to get the confirm email to go thru 2) does the appointments+ work as it is supposed to? 3) do I need to use marketpress in order for a confirm email to be sent?

I fooled around with the settings plenty and no confirmation email and I used WP-Mail-SMTP and still not working. It seems as tho there is code floating around but I don’t know how to use it. i need instructions like which file and where in the file. Thanks for your help in advance.