Brookshaw Management, LLC Debt Collection Complaint

Brookshaw Management, LLC Debt collection department,

Payday loan Cont'd attempts collect debt not owed Debt is not mine Texas

My account with - was sold to - and recently they were going to subpoena me to court if I did n't pay $300.00 dollars. So I did n't want to risk going to court and pay fees so I agreed. The so-called debt collectors are called - Management. I checked out their website and it did n't look credible. Is there anyway you can find out if I have been scammed? I know my money is long gone by now but I want to know if I really paid my debt. Also, when I checked my account with - it said I only owed them $75.00.