Reliance Energy — too high electricity bill

Kindly note that my currentbill of last three month is too high. I have been using the same applince the same as the previous months. The last three month it was 25870 on 17/10/2017 after complaint on 30/11/17 they said meter is damaged after that 14 or 22/12/2017 they changed our meter and from that day to now we dont get any bill and on 30/01/2018 they came to cut our meter we request them to not to cut. After that when we went to reliance office they said that the electricity bill is 51000. And the report of replacement of meter is not came yet. We are not supposed to pay that much amount of bill its too high.