Over charged and no refund

this is my 5th review for Telkom and still no refund was made i received a call from the product manager Milli Malaka and she advised that i will be getting my refund in 5 days i am waiting more than 5 days and still no refund, i was over charged for my insurance and the fault was on the billing side of telkom i am waiting for the last 3 and a half months for this issue to be resolved and i am getting the worst service from telkom