Poor Customer service

Last year I went to Old Mutual Cresta to tell them that I'm retrenched, they told that they gonna put my premium on Holiday period until December if I found a job on January I must come and tell them that I'm working, so that they can start deducting money. Unfortunately I did not found a job but end of January they started to deduct my money so I want my money back, after holiday period because I'm not working.