AMCOL Systems, Inc. Debt Collection Complaint

AMCOL Systems, Inc. Debt collection department,

Medical Cont'd attempts collect debt not owed Debt was paid Arkansas

I received a bill in the mail for a medical debt. this debit was paid. I sent a letter to the collection agency to send me a itemized bill with all the breakdowns of this debt. I sent a letter back within 5 days of receiving the bill asking for all the medical proceeders that were done. I never heard from the collection agency. it has been 90 days from receiving. now on my credit account it shows up as a open collection. just on - and not on -. what I would like is to have your complaint department to look in to this and if you can have it removed from my credit account. thank you.