Vodafone India — Deactivating service without any prior information

Address:

East Singhbhum, Jharkhand, 831011

Hi,
i m new to you, has been having isd calls facility for the first month as i have been promissed by your sales guys, suddenly on 2nd aug received sms from your side the isd has bee deactivated.
no one from customer care (dailed 198) is ready to take my complaint.
one more thing I have taken this connection on my self(individual connection) only and not provided any authorization letter from my company then how could be this has been issued as corporate connection.
please look into it as it is a concern for me from where they got documents. Have they forged????
its really too serious issue for me and my organization where i work!!
expecting a prompt response.
regards
Siddharth Sharan