WhatsApp Business Verification & API

I already run a WhatsApp Business account, but it still shows as “unverified.” I need someone who knows the Meta Business Manager flow inside-out to walk me through the remaining steps, review the documents I have prepared, and make sure the green checkmark appears without delays or rejections... (Budget: $10 - $30 USD, Jobs: API, API Development, API Integration, Cloud Computing, HTML, JavaScript, PHP, Software Architecture)