Being treated unfair

Hello in 2021 I paid for the Outsurance policy along the line My dates of payment got mixed in some way, my policy with them lapsed and it was the End of it I tried calling their head office the Man answered and told me I am not going to get any Cash back from them but when I started to pay the Policy they promised to give me my cash back if I loose interest into their business , so what I want to know is how are they going to solve this whole things because I paid a lot of money for them not to be able to pay me back, I wasted 10 months of My money only for it to be Chowed by their Company hello No I want my Money Back every cent so I can go elsewhere to pay for my life insurance and policies they treat nicely and smooth talk you into joining but when its time for them to pay you back they have silly questions and answers on things they already know about so help I want my Money back, how is it simple for them to deduct the Money from me and not easy enough to pay me back the very same money they took from me, I was given ****ty treatment to be honest so I want my money back s