Tamil Nadu Electricity Board [TNEB] — Excess voltage appliances damaged.

For the past few months we have excessive voltage to our building which caused our fridge and security cameras to go down. I complained several times to local EB office which is Thillai Nagar, Salem. The staff are very negligent and not at all responsive which includes the additional engineer. Very careless attitude and not willing to solve my problem. I am getting 250V which is more than the standard 230V set by the government of India. Please fast track this complaint and get this sorted for us.