Metropolitan life fails to pay for my investments

I have opened the investment plan with Metropolitan life in 2018 for a period of 6 years. On the 10 February 2023 I requested the partial surrender of R25 000, they didn't pay me I was making a phone call almost after every 2 days to check on when am I going to get money but I was just taken from pillar to post. Even sending them e-mail with no response. On the 25 March I decided to request the full withdrawal considering that even if I can continue saving there is no assurance that I will get my money after maturity. On the 11 April 2023 they paid me R25 000 and when I asked them they said for me to get the surrender amount for the value of +/-R33 000 I have to return R25 000. I did send it back on the same day even today I haven't receive the money as I was suppose to receive. To date I have made the total enquires for +/- 25 phone calls and told that my matter has been sent to the technician meaning I will get money soon. Even today on the 24 April 2023 the status still remains the same waiting the money. The experience is very bad. Not know what to do anymore, I am tired of calling them hence I am seriously need the money. Please hello peter intervene.