Not nice at all,the pronlem is poor client service snd inconsistencies with my premium boggles the hell out of me

Not nice at all,the pronlem is poor client service snd inconsistencies with my premium boggles the hell out of me. The monthly premium I was quoted is R500.76 but for November they deducted R597. Its not the first time they deducted R597,I called them about this,they said they will rectify it they didn't. For December they deducted R500,76. When are they going yo refund me the excess amount they took from my account? They are able to send me advert material to my email but they failed to send me my policy document even after I asked them to.