Vodafone — vodafone not giving access

Incoming Vodafone calls to my no. [protected] were bared after i switched from Airtel to Idea after activation
on 10/082012 Every vodafone caller is told that this no. does not exist. I have not received a single call from
vodafone numbers till date. I have lodged 5 complaints to Idea customer care but nothing
was done. They answered that this fault is at vodafone's end try vodafone.
I tried they said same.