Metropolitan is ****

I am not even sure were to start , I took up a policy with Metlife on the 1st march 2007 and i was paying a premium of R22 which only covered myself o. A few years later i received a call from Metroplitan for a policy upgrade i and i told the agent to add my mother and brother onto the policy which i was told it would increase my premium to R56.20 and I confirmed I was comfortable with the new premium of R56.20 . So I received a call from a lovely agent by the name of Khensani who initially was calling my mom to find out if she was still ok with the policy or if she wanted to add someone so i asked her to check my policy to my surprise I was told my premium is R22 but a debit of R56.20 has been going off from my account for the past 6 years . Reference on my ban statement is METROPOLIT***BM403 of which it doesn't exist according to the agent . If my policy premium is R22, then i need a full reimbur*****t for the additional amount that has been going off my account .