I have had the alleged debt from XXXX XXXX sold to another collection agency. I have repeatedly asked for XXXX XXXX to substantiate the debt. My original complaint was dated XX/XX/XXXX transaction ID XXXX. A subsequent complaint was submitted XX/XX/XXXX. As I stated before " until XXXX XXXX can provide evidence of this debt, the movement from one collection agency to another should be terminated. I am repeatedly harassed by third party colleciton companies.?