Sudden premium increase!!!

My premium was increased last month by R500 without emailing me or notifying me. I then sent an email to AA on the 26th of October 2018:

"Hi,

Can you please explain to me why my insurance premium increased by R500 this month without any prior notification?

Last month it was R1200 this month it is R1700.

Please explain this."

I then received an email from one of their representatives"

"Good day Mr. Mosomane

I trust you are doing well. I’m responding to a request to review your monthly premium. We are able to reduce your monthly installment for you and I will forward the updated schedule to you. Should you need to do any updates on your policy you may send a mail to our client care department at **********

Also to answer the question of the increase: Oakhurst, our underwriters, had an annual increase on all of the AA policies."

1 - I didnt request a premium adjustment 2 - I asked why wasn't I notified of the increase 3 - Who is Mr Mosomane? 4 - Why haven't I received a call from AA to discuss this matter?