Increasing payments and VAS services not getting refunded after cancelling.

I decided to change insurance companies since Auto & General just increased my monthly installments without any notification. The cost of insurance just went up, and no one could give me a reason when I asked why, with this in mind, my car value reduces each month, yet they increased my insurance policy each month. I contacted A&G last month and cancelled the policy with them, which was very fast to do. Last week at the beginning of the new month, I saw R200 deducted from my account from A&G VAS. I contacted A&G and they told me these are Value added services that are not linked to my insurance policy. When the lady told me this, I remember telling them in fact in the past that I do not require these Value added services however, I now asked them to cancel this for me. I called them today, the 4th November, and they told me they would cancel this for me however, I will not get refunded this amount that they took from me. This is ridiculous, as I cancelled my policy with them a month ago already, and even if it is not linked to my original insurance, how can they keep my payment when I cancel for the rest of the month? Beware of A&G, they will increase your payments without notification, and still take money from you even after you cancel.