Hi,
I am using RO Payments in combination with JoomDonation Events Booking. On you website I downloaded and installed the plugin EventBooking. The payment process is working fine, but the confirmation mail is not send.
The support-desk of JoomDonation suggested that your EventBooking plugin might be out of date.
Can you check if you have the latest version of the plugin? If I download it from the JoomDonation website I have to pay for it: https://joomdonation.com/payment-plugins/events-booking-payment-plugins.html and it is included in your subscription.
Kind regards,
Peter