Which SIM you are using ?
Are you had your RMN with you ?
If not try to WhatsApp them on this Number 8130681306 for quick response.
Another options to update RMN
- Toll free number 1800-103-6065 from any mobile or 12150 from an Airtel mobile.
- To change the registered mobile number you can follow this link: Update your registered mobile number for digital TV. You need to provide your customer ID and confirm a few details such as your plan and last recharge amount before getting the option to choose your new registered mobile number.