Provide proof of insurance 10x's and still charging me for insurance that I already have.

Wesbank has just increased my car instalment by +-R500 because they claim I have not provided proof of insurance. And they will now take out car insurance for me - I dont know any of the details of the insurance Wesbank is providing but I now have to pay for car insurance! WOW Wesbank!!! Here is the crazy stuff! I have sent them proof of my insurance 4x's to *** + 4x's to *** + 1x to *** + 1x to *** so a total of 10x's I send my proof of insurance with Momentum to Wesbank. And here is the best part they acknowledge the proof of insurance but still increase my car instalment by +-R500 for car insurance that they just added on to my car instalment. I then spent days and hours on the phone trying to call them to get this fixed and not 1 person can help me NOT 1. So now cancel my debit order and pay them my agreed amount! And I trash their name all over social media! Thank you Wesbank for you ****ing incompetence at my expense!