Add tab to credit account

Dear Gian,

I previously reported about the fact that you stop the accounts immediately if money is not received. You changed it to send a reminder sms out to the clients and give them 15 days to pay. This is a brilliant change and I want to thank you for it. Job well done!

Now I would like to know if you can add a tab under billing, where I can pay my account in advance (like have a credit balance on my account).

To explain it better if my invoice is due the 5th of september and I would like to make an early payment towards settling the account today, but there is no option for this. The arrears option will only be activated on the 5th or after. Could you make this happen?

Thank you in advance

Kind regards Ludolphian