Sending an email to people submitting form that the payment has been made

send the payer an confirmation email
that a transaction to there card has been made.

When sending email to people that have submitted the form, it is important to setup the email autoresponder properly and we just happen to have a guide that explains this in several simple steps. You can check them out here: Creating a Form Autoresponder

Of course do let us know if you happen to have any issues setting it up and we would be happy to assist.