My question involves collection proceedings in the State of: Illinois (Cook County)

About 9 years ago, I obtained a business credit card through my former place of employment, which had the name of the company and my name on the account. The card was used for business purchases only, and the company paid the bill. When I left the company 8 years ago, I cancelled the card and the company agreed to pay off the balance.

I recently discovered that the company defaulted on the debt, it has gone to collections and is also now on my personal credit report. Is there any type of legal document that I can submit to the credit bureaus and the collection agency that will exempt me from being personally liable for this debt? The company acknowledges that they are responsible because they were paying the bill. Meanwhile, my credit score is going down the tubes!