Car loan ?
2 attorney answers
If you purchased the car on time, they can run your credit. Multiple credit pulls within 30 days for the same sort of credit count as one. There does not appear to be any violation
You are not providing important information, such as: they they tell you your credit has not been "approved," did the ask you to bring the car back, did they ask for more $$$, etc. With the information that you provided, it appears you bought a car, you probably signed a document allowing them to assign your finance contract to some bank, they are trying to do so, there is nothing illegal about it, and the car appears to be yours. Based on the facts provided, I do not see what legal action you can take. But there are more facts, I am sure, that might change this analysis.