My name is Uche, I want to introduce you to what I have been working on for quite some time now. Subill is a flexible, SaaS (cloud-based), recurring and subscription billing system across Africa for companies running a subscription based business/service, so you can focus on actually building business or services and worry less about integrating payment solution.
With subill your customers can upgrade, downgrade or cancel their subscription from their dashboard, and many more features. Also with subill you can accept payment with non-recurring payment methods like mobile money, bank transfer, mpesa etc
So to all the IndieHacker bosses, if you are interested. See: https://www.subill.co/