Hi, @Bruce Thanks for your reply.
Yes, I did disable iMessage and tried, but no luck. I could only fix this by creating two profiles, one with Apple ID and the other without Apple ID. First I add the device to the Apple ID profile, add the send and receive the number and then move the device to profile with no apple ID.
The only issue is if the device did any iOS update and restarts, this will lose the send and receive address.
Wondering if there is anything that needs to be changed from the initial enrollment settings when we sync devices from DEP.
I will give it a try and update it in the next few days.
Many thanks to @All