Transworld Systems Inc. Debt Collection Complaint

Transworld Systems Inc. Debt collection department,

Other (phone, health club, etc.) Cont'd attempts collect debt not owed Debt is not mine Missouri

I received several letters from Trasworld Systems stating I owe - - - -, - - - - -, -, Mo. Phone -. The sum of $99.00. I called - - & they told me that my account was paid in full. To ignore the Collection Agency. I do n't want this to affect my credit score & I want Transworld to leave me alone. I called Transworld but could never get through. Please help.