J J Marshall & Associates, Inc Student Loan Complaint

J J Marshall & Associates, Inc Student loan department,

Non-federal student loan Dealing with my lender or servicer Keep getting calls about my loan Michigan

I attended - University from -, I got financial aid to help pay for tuition and stuff. - issues students debit cards to load the unused balance from the student loans into the card. I decided to not attend school anymore and dropped my classes. Last year I got a letter from - saying I owe them over $3000.00 for the renaming portion of my loan. I lost my debit card soon after I dropped my classes and I never took the or received the $3000.00. I tried to explain that to - and they told me too bad and referred to a collection company. I disputed the debt with the collection company and the collection company could not verify the debt and stopped collection activity. It 's been a few months since they could not verify the debt and now I get another letter from a collection company stating I owe the debt again and if I wanted to validate the debt I can but a lawsuit will begin if I ask for validation again. I was under the impression that once the collection company can not verify the debt all collection activity stops. Am I wrong? What do I do?