Actually, you CAN NOT GUARANTEE any debt is valid. JL Teamworks is taking the information they get at face value and do not know the validity of any bill. I have received calls from them trying to collect a debt that I do not owe. After some time and considerable headache on my part they finally stopped calling.
My advise is to send them a certified return receipt letter demanding proof you owe the bill within 30 days. Include in the note that just saying so does not make it so and that you want to see copies of the original bills. If they fail to provide you with such proof then tell them to cease and desist all collections and file a complaint with the FTC (they have a handy form on their website). Failing that, take their incompetent behinds to court.
Should they provide proof and it's legit, then pay up or make arrangements. It's their responsibility to prove to you that you owe any debt and should not be harassing anyone. Likewise, if it's your debt, it's your debt.
I have dealt with some obnoxious and mentally deranged people in my life, but this guy takes the cake. Don't know why HIS need to know who I am and find someone else trump my need for security and not giving out any personal info to strangers. After I called for permission to give the company the direct line of who they were calling, they called me rude and refused to take down the number.
I get calls from them all the time. It drives me crazy! They never leave messages and I never answer my phone when I see their number. Has anyone been able to get their number OFF whatever list "JL Teamworks" is using?
the only way is to call them if your have their # and to ask them to stop calling. and ask for their address to send in writing to tell them to stop calling. It depends on the state you live in. its under the FDCPA law