premium increase

So a month back Oackhurst decides to increase my insurance by over R500.00 without notifying me. When i call them yesterday to enquire, and they tell me my portfolio manager is conveniently off for the week. Then they go on to say they will call me back, which they never did. When i call tjem today they say that their system shows that they notified me via email and via post on the first of September 2015 and i know for a fact that they never did. And the funny part is they always send me weekly emails with my rating as a driver but their system conviniently doesnt send this email and i dont receive it in the post either?<br> <br> And as im writting this review they just forwarded me an email dated the 1st of September 2015 notifying me of the increase. <br> <br> I honestly never expected such unprofessional conduct from them.