Emailing Deposit to Customers

Seriously i'm so tired of getting complaints from customers because our accounting system CANNOT and WILL NOT add a feature to send a deposit email or receipt. Surely it can't be that hard to create, you are adding so many more complex features and yet this simple one has NEVER been considered eventhough your customers are screaming out for it - on a constant basis. There's a buttom for emailing invoices surely one can be created for emailing receipts! PLEASE get this done ...