Tata Indicom — tata indicom cdma mobile service stopped working

Address:	Rangareddy, Andhra Pradesh, 500035
Website:	www.tatadocomo.com/en-in

Dear tata indicom,
I have been using tata indicom from more than last 10 years. All of a sudden, without any notice and consent, my service has been stopped.

I'd like you to help port the number to a different network (Doesn't matter which network it is).

When i contacted airtel and tata docomo store in hyderabad, they are saying porting is not possible as my current network is already out of service and my mobile is not working.

This is so bad, when i'm an an existing customer and without addressing my next step, how can you take out the service?
Appreciate your help