to obtained the electricity power in house hold is high than specified

i have complaint in bses costomer care before 10 days regular.bses not help me and don’t answer the phone cal my complaint no is 2081,2345,1553,3880,1211,3725,1476 etc.and my CA no is 102044607.so please help me my contact no 9899213965 sir please help me my home appliance is damage for high voltage.i hope you help me