Idea Cellular — Mobile sim not working but billed generated by Idea

Address:

Paras Apartment CHS Ltd,

Dear sir / madam

Please help me on this issue, my idea number is [protected] is not working from 2 month, i have complaint given 2 time & still my issue not solved, idea cellular is sending bills every month, please advise why they are not sending bills, my mobile not working from 2 month but they are not solving, also they are given excuse due to merger with vodafone this issue happened & service is not started in 1 or 2 month but they are send bills every month,