With the work flow with how you take deposits from tickets and it creates an invoice marked paid in full, we aren't able to add credit card fee line items automatically from there, so you're "Action-> Deposit" workflow method is invalid for us. Perhaps make it so invoices can have items added to it even when marked paid as full. (or just set it up so that whenever a credit card payment is used as the method, then a credit card fee is automatically appended to the invoice, which this would be a more preferred method!!)