Reliance Communications — Iam not getting incoming calls since yesterday

Address:

Bangalore, Karnataka, 560091

I was having cdma mobile connection, reliance kept on requesting to change into gsm network, i did so, i bought a new gsm handset and inserted new gsm sim, but i am not getting incoming calls either to me earlier cdma handset and my new gsm handset

I have lost two days business due no incoming calls to my mobile no.
This is utterly due to the irresponsible service from reliance
I have tried to call customer care numbers, none of the customer care numbers resolving my problems