Service delivery - Electricity

Living at Wilgeboom small holdings. Electricity permanently dipping for 4 to 5 times at a stage till power stays of for days. Repairs is patching. Been going on for years and residents complaint without any success. No proper investigation in the source of the problem. Residents loose electrical equipment due to these surges. Always happen during strong wind and rain. Electrical department just reply they are attending to it. Bills are over R 2000 but service is lacking. Please help.