If they are saying you are going to jail you should immediately contact a lawyer and make a claim. You are entitled to damages and attorney fees. Many times your lawyer will be able to wipe out the debt in addition to getting you compensation. This sort of conduct is actually good news in that you can, if done correctly, eliminate this debt at no cost to you.
If you want to discuss your case further, please contact me at 855-709-5788 or at email@example.com. We only represents consumers in CA. Every case is unique and requires a thorough analysis of your situation with a lawyer.