Very unhappy client

On the 2nd of Nov 2023 I cancelled my Greenlight Policy with Old Mutual with immediate effect. However, on the 15th of that month they deducted a sum of R649 from me. After laying a complaint I was contacted with appologies and informed that it will be sorted out. Yet on the 9th of December I once again see athat they once again deducted the same amount from me. Once again I refered the matter to their complaints department and yet, till today I have not received any feedback whether the money will be reimbursed etc. They are very willing to write you policies but once you cancel, they drag their feet to stop the order. I am very disappointed that their complaints department does not react to their own emails they forwarded to me, stating that they appologise and a yet, a month later they do the exact same. I thought they are a reputable company. Will not trust them with any of my policies