SquareTwo Financial Corporation Debt Collection Complaint

SquareTwo Financial Corporation Debt collection department,

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

I was never sent notice of this debt, it just appeared on my credit report. Furthermore this debt is not mine or is older than 7 years old. No debt validation was given or sent or a notice that this account was going to be reported to a credit bureau. i would like proof that this account is mine by company furnishing original signed documents, all payment history if this account is mine, and date of last delinquency.