Vodafone corporate plan fake bill

Dear all, my vodafone no. Is 6743 its a corporate plan, I never use internet of more than 100 mb on this no. But as per vodafone they send me a bill of rs. 345. In this call charges are of rs.150 only. When is escalated this matter to kutchery road (ajmer)store manager and r.M. Mr.Mansh chawla they both are helpless in resolving the issue, they told me that u have to pay this much amount other wise we will discontinue your other no. And recover the amount from that no. Is this a way of recovering charges. Plz take suitable action against vodafone. Regards, vishal singh devra 6743