Increasing premiums without notifying clients

I have a warranty policy with Auto & General and I have been paying a premium of R464 monthly, however this month I was debited an amount of R580. I called Auto & General to find out what happened and I spoke to a gentleman by the name of Karabo who told me that my policy went under review and premiums were increased. I have NEVER received any communication from Auto & General ever since I took this policy, I was asked to submit an invoice after I paid for the repairs of my vehicle last year and I NEVER got any acknowledgement of my email, then Auto & General decides to increase my premiums without informing me as a client, is that even allowed let alone ethical for you to increase my premiums without informing as a client? Thando then reviewed my policy and assisted me in adjusting my premiums going forward and we arranged for a refund in difference for my premiums and I was promised a revised policy schedule and I was told I would get an updated in 24 to 48 hours and to date I am still waiting for my policy schedule and for someone to call me with an update of my refund. I was called yesterday by Auto & Gen to find out if I have accepted the new debit order mandate, excuse me? My initial query hasn't been resolved let alone me receiving my latest policy schedule yet you are calling me to accept the debit order mandate. The lady that called then said to me my query has not yet been assigned to anyone and it will be assigned in the 72 working hours and I should expect feedback next week. Wow, nice going Auto & Gen you guys are doing an amazing job in frustrating your customers. This is the reason I moved my main insurance from you, its because if this shocking service and taking your clients for granted. Can I have my refund processed today PLEASE if it's not too much to ask and can I also have my policy schedule sent to me today if this is not done today by COB I will cancelling my policy and moving elsewhere, I know I am just a number and my R400 premium won't make a difference to you.