National Highways Authority Of India [NHAI] — Exempted fastag

I got extempted fastag from NHAI chennai RO office.
1033 helpline saying my id is activated.
But in tollplaxa they are telling it is not activated.
If we raise complaint in helping they are asking to check with RO office who provided the fastag. But if I call RO office they asking to raise new fastag request again.

No proper response.
No root cause for the issue.