Punjab State Power Corporation [PSPCL] — complaint about the average bill

Website: www.pspcl.in

We are getting the average bill for two times. We have informed to the the department 2 months before to replace our meter. But till now our meter has not changed. We are getting the average bill.in the bill it is showing the meter status "d". According to the bill boy they have already complained online so it is showing status "d". But we want to know the time taken to resolve the complaint online. How much time is required to change the meter?