Incorrect Premiums

I have a policy with Oakhurst on my car, of which my premiums is R1,022.61 per month. This amount and only this amount has been deducted on previous months. On the 27 June, Oakhurst deducted 105.00 from my account. I contacted my personal portfolio consultant, Lisa Carstens (Who is hopeless at customer service) via e-mail 4 weeks ago. Since then, I haven't received any response. Payments for the month of August ran off my account this month to the following values, R1,022.61, R105.00 (This was on the 24 July) And again on the 27 July to the value of R750.00. This tells me this is the type of company that just wants to sign you up, get your money and don't respect you as long as your money goes to them. I am very disappointed with my personal portfolio consultant and the service I receive from Oakhurst. I want my monies refunded into my account!