Please note WhatsApp Green Tick Verification is different from WhatsApp API Verification. A business may be approved for using WhatsApp APIs, but may not be approved for a Green Tick.
To be able to submit the Green Tick verification request, you’d have to fulfill all prerequisites first.
WhatsApp typically grants Green Tick or an Official Business account to very limited and highly reputed businesses with a well-known, often searched brand or entity. This process is solely on WhatsApp, and Chat ON Desk have no influence over it.
If your request was rejected, you can resubmit the request 30 days after the last request was rejected.