Tata Sky — SHOWING WRONG CUSTOMER ID AND NO RESPONSE ON REGISTERED CELL NO.

Dear Sir/Mam, My subscription id is :[protected] and registered mobile number is [protected].Sir i would like to complain against your IT or CUSTOMER CARE department that often changes customer id in my setup box and fromwhich I feel inconvenience, When i wish to give a miss call in [protected] to know due date but no response from your company, Please solve my problem.