I'm interested in setting up a monthly billing system for my business customers.
I've already setup my site to checkout if you're a business without the need of a credit card to pay upfront. I then have to manually export all order information for each company's bill at the end of each month and generate a bill for them to pay (similar to a phone bill).
What i want is a system that will auto generate a customer's pdf/.jpeg bill based on the customer group that is set. After the bill is generated, it is then automatically emailed to the customer. this is then repeated every 30 days.
Is there an extension that already does this? as i wasnt able to find any. If not, what is the best approach to achieve this?