Need Help Connecting WhatsApp Business to My Chatbot (Works with Meta Test Number, Fails with Real One)

Description:
Hi, I'm looking for an experienced developer to help me connect my chatbot to WhatsApp Business using the Meta API.

My chatbot functión with php and html

Right now, everything works perfectly with the Meta test number, but when I switch to my real number, it fails to send or receive messages, and I haven’t been able to fix it.

What I need:
A step-by-step live video call to guide me through the full setup.
Review of all key elements: access token, webhook setup, phone number approval, verification, etc.
Final result: my real number must work exactly like the test number.

Requirements:
Proven experience working with the WhatsApp Business API (Meta).
Deep understanding of authentication, webhooks, tokens, and business number setups.
Clear communication and patience during the call.

Budget:
$50 USD (payment will be released only after the real number works correctly with the chatbot).
Language: Good english

Deadline:
ASAP

Please include examples of previous WhatsApp integrations you’ve completed. Looking forward to working with you!