Recurring Billing Invoice System

We are a Bendigo based occupational therapy provider. At present I am doing the admin in my spare time, but I no longer have any spare time! I'd like to source a VA for my director which would replace me... (Budget: ₹750 - ₹1250 INR, Jobs: C Programming, C++ Programming, CSS, Data Entry, Database Management, HTML, Java, PHP, Python, Virtual Assistant)