How to make a personal account with the user's financial balance more competently?

Question

Automation

There are about 1000 clients on services with annual payment. How would it be optimal to make a personal account so that the client enters the personal account, replenishes the balance, sees the ordered services, can order new ones, issue an invoice for replenishing the balance or pay by card.
Well, so that the LC reminds the user of the need for an early payment, delay.
Perhaps there are some ready-made solutions? Conditionally ready?

Answer 1

There are no ready-made solutions, you will most likely have to write a Personal Account, billing, notification system, etc. yourself.

Answer 2

wordpress
or any CMS
or any framework