Have the receipt of payment indicate a "medical appointment."

allow me to see running balance of past invoices and payments to same vendor

This would be very helpful

Quickbook Pro Advisor +1-855-955-6617 Free Helpline

This is my biggest complaint as well!!

I would like to see the status of my account. I would like to see invoices that I have paid, invoices outstanding and payments that I have made. Also to select outstanding invoices and pay them in one payment.

Exactly! If a customer does not open the invoice, they will not see the past due balance. The email only shows the new invoice amount in the body of the email, making it very confusing to the customer. Either don't include the amount of the invoice in the body of the email (forcing the customer to open and read the invoice), or add two fields in the body of the email, showing "Past Due Amount" and "Total Balance Due" to go along with the New Invoice Amount. I'm very surprised that this has not been address by now.

The email sent to customersvia Merchant Services only shows current invoice total, even though the actual invoice shows past due amounts. Also, Merchant Services will not allow customers to pay amounts greater than the invoiced amount.