Discovery Insure Ridiculous Premiums

Greetings

I bought a mercedes benz c200 amg line in 2020 and I insured it with Discovery including house contents for about R265 000. To my surprise last week I have received an email that says the premium is increasing from R1645 to R1855. I have never claimed anything from Discovery for the premium to increase by more than R205. I am taking my services elsewhere because this is ridiculous, there are no salary increases and how to you go up with more than R205. I am done with Discovery Insure