Bad service unprofessional

On the 1st if September 2019 first for women increased my policy without even informing me they tell me they send me a letter on July which I checked my emails The was nothing like that I phoned and told them even if the policy is increasing before the deductions they need to inform me that please be reminded that your policy have increased from 1 September to this much when I phoned in they tell me they can reduce it to 842 again I said know but why was I not informed in the first place you took R1036 in my account without advising me