Bad customer care

I am absolutely disgusted and appalled at the service I am receiving from Teljoy. I have bought so many products through Teljoy. Now I go through my invoice and I am being charged nearly R300 for products that I have already paid for. I am told that it is Insurance. I have attempted to reach Teljoy, without luck and have sent an email on the 31/01/2024 with a totally unacceptable response that you are all to busy to sort out my problem. You honestly don't expect a client to keep up to date when products have been fully paid for especially when I have purchased so many products. I am demanding that someone call me. I am totally disgusted that you bunch are just taking my money!!!!!!!!!