Transworld Systems Inc. Debt Collection Complaint

Transworld Systems Inc. Debt collection department,

Medical Disclosure verification of debt Right to dispute notice not received Maryland

I pulled my credit report and noticed that Transworld System was reporting on my credit report, I never received an early warning notice, I sent a notice to them letting them know that I never received an early warning notice and how can they place it on my credit report and also I sent a follow up letter for them to validate the debt, they never sent anything and they had the debt removed and then replaced it on my credit report 2 months later without no notice at all.