Great tool you have here. I have a few clarifying questions

1. I want to be able to bill clients using local payment processors like paystack, is this possible? I live in nigeria.

2. For the WhatsApp connection, do i have to be subscribed to twilio? Would my own clients need to be subscribed to twilio as well? I'd like to be able to give clients a fixed pricing, whether it's one-off or monthly.

3. If I use my own claude API Key would all the accounts under me feed from it or each subaccount can use its own key.

4. Asides claude credits, is there any other payment that needs to be made to keep the tool functional.