Nedgroup Life horrible service

Every 3rd month since September 2016, I get an email or letter saying my LPA has lapsed. I have been fighting about this and calling in since 2016, as the LPA goes off with my bond payment, and am assured each time it is fixed. I called in today and the operator told me I haven't paid since 2016, whereas I have a letter from 28 July 2017, clearly showing that my instalment includes my LPA and my bond. You guys are too *********** and you better sort this out and never send me any communication saying my policy has lapsed. What has been happening to my monthly payments, I have never missed a payment as you guys are the first to deduct from my salary. Check your call records, each time you guys tell me the problem is sorted!!