Discovery misinformation of monthly premium

Hello, I was on the keycare core option up until the 31st of December 2018 when I changed over to keycare plus on that date . The call centre agent did inform me that I will have to pay +-R100 cause extra . However they did inform me that they would place me on the highest premium bracket which is R3000 until I provide my salary slip,bank statements and salary verification document and must be done by the 15th of January 2019 and if don't send through the documents then my premium at the end of January would be 3000. Before the 15th the above mentioned documents were sent through and I received a confirmation email from discovery. On the 17th and 24th of January I did call in to ask if my documents were received and the agents confirmed and my premium of R1088 was also confirmed. I asked the agents on numerous times is there any other amount that I will be paying and it was a clear NO.

On the 1st of February I got debited an amount of R2400 and still owing an amount of R800. I called the agents to ask why this happened . I was told that my premium for January was R3000 and that's why the amount was debited from my account . The agent clearly asked me to send in my information by the 15th of January so they can adjust the premium and it was all done exactly as I was told . In all the conversations that I had with the agents everyone confirmed the premium of 1088 not 3000 . Why would I pay that a mount for the lowest plan on the medical aid . I could be on a much higher option with more benefits .

The agent told me today that because I changed over on the 31st of December 2018that my premium was set to that . My question is why wasn't I informed of this . So what was the point of asking me to send through the information by mid January if the premium was going to be 3000 and had they informed me from the get go of this exorbitant amount I would not have agreed to changing my option on medical aid .

Kindly assist me in this matter.

Thank you Shaminee Naidoo