Refund withheld and listed on Credit Bureau

I hired a Breaker machine, which stopped working whilst operating. When I returned the machine, I was told that the machine would be sent for an assessment. After sending numerous e-mails to Benoni Coastal Hire requesting them to refund my deposit I was sent I was sent an invoice of R3624.80, without any explanation and without the assessment report. I then continued sending Coastal Hire Benoni e-mails querying the assessment report and my refund. Eventually, they sent me the report with an updated invoice. The amount I had to pay was now reduced due to “as they replaced items that is preventative maintenance” (How ********* of them, to send a client an invoice and then change it after being put under pressure…). Upon reading their report I found that the machine should not be used with an extension lead exceeding ten meters, this was not communicated as per their hiring contract and I have pointed this out to them verbally and in writing. For them, the only thing which matters is the fact that the machine was working when and should be returned in working order. How can this be when you have not communicated proper use of the equipment? To add insult to injury I have since been listed on the Credit Bureau. This will now impact me when applying for credit (higher interest rate, due to credit score) as well as negatively affecting you when applying for employment. This matter was referred to Kim Mc Court (Director) Coastal Hire head office, I found her to be conflicting and empty promises (confirmed via e-mail that she will resolve the credit bureau list, she gives the impression that she cares about you as a client but sides with the branch.