Poor customer service

I received my policy schedule/documents with updated premium that are to commence January next year. The new premium was stated as R981, and the mandate for that amendment was send to my bank and I have accepted it. I called the iwyze call centre yesterday on the 5th December 2022, to get my address where the car is parked at night corrected, since this was captured incorrectly. I have had this cover for a year and I noticed this error just now. So the account was corrected and the new schedule was then emailed to me. I also received the new mandate to approve. The cover is now increased again from R981 to R1063 no reason was provided whatsoever. So I called in this morning, and spoke to Zanele, who didn't even want to hear my query and just wanted to transfer me to another person, I asked why she wants to transfer the call, her reasoning was lame and weak, she just was not willing to assist or look into the account. I told her off and requested to speak to someone else, she just kept the call going and didn't say anything. I dropped and had to call again. Went through to Dikeledi Matole, who is in the same department as Zanele, she at least took time to investigate the matter, she said that the correction in the address is not the reason for the now increased premium, there are no notes on the system explaining this change. She wanted to transfer me to another department of which I refused, i told her to escalate the matter and return back to me. This query is now here, I'm hoping some manager will attend to this and I'll get proper solution or elsewhere I'll move my business elsewhere with immediate effects