I've got a pending case with this company because ...

I've got a pending case with this company because of there empty promise ,2018 CTI financed me for training that I didn't receive from this company and I even went to there offices to complain and get issue resolved but they told me that Timo is not around he will contact me as soon as he get back to the office that was 2018 till today 2021.

I haven't receive any feedback or call from him and it is now affecting my credit profile coz this thing is showing on ITC.
so I don't know if this is how they run there business on is there anyone that can I contact and just cancel my name on there system coz they lied to me from Day one and the salesperson told me that it was cancelled but today it is affecting my credit score