Very bad service

Worst experience ever, Hertz Hatfield I rented a car from them for more than a month on my last week of the rental they told me that my credit score doesn't allow me to get a car from them they said I had bribed their employee to be assisted with my bad credit record of which all this started when the lady who was very friendly made a mistake on debiting my account so they asked me to send my personal bank statement to correct their mistake but funny enough they used my statement to discipline their own by saying I have sent her R400 that was appearing on my statement of which I did send few days after receiving the car because of her great and good service and calling me whenever I needed to extend my rental period. They then used it to try fire her for that and after returning their it was bumped/smashed on the front right I took it back as is since I was tired with their incompetence and nagging to my surprise they tried debiting my account for R9988.06 for their protection despite having my R6000 deposit and they failed because I have already moved funds to my savings, I acknowledge the incident then they came with another strategy they booked the car for panelbeating and they now want me to pay R48083.29 even though the damage and collision is cover on my contract " Hertz is a **** they don't value their customers they always take us for rides" the qoute is ridiculous and in human and they are hypocrites for using my personal statement to silence their employees.