Fix Paystack Funding Callback Bug

I have already integrated Paystack on my site and confirmed that both the callback URL and webhook endpoints are reachable. Payments go through and Paystack marks them as “successful,” yet the buyer’s balance never updates on my platform and no error is returned... (Budget: $10 - $30 USD, Jobs: API Integration, Debugging, MySQL, Payment Processing, PHP, Software Architecture, Web Development, Web Security)