Metropolitan very bad service

Hi i have been a client of metropolitan for 30years. I retired in 2017 but continued with my policy. In november 2020 i received a letter stating that they have transferred my policy to a new administration system. Thats when the problems started. Then in december 2020 i received a letter my 30year policy has lapsed. I went in to the bellville branch in january 2021. The consultants was very unhelpful and made sarcastic remarks. They told me im 5months in arrears with my policy. Thats why it lapsed. I didnt receive any communication from them since covid started. So i was unaware of the arrears. I wasn't able to even visit any branch during covid. I feel very unhappy about all this money that I've paid for 30yrs and now its all down the drain. Please assist me on this matter because i refuse to except this. I have only 1year before the policy had to pay out. Seems to me like this is the reason the let my policy lapse