Credit Systems International continues to call me multiple times a day from multiple numbers throughout the state of Texas. I have repeatedly asked for verification of said debt in writing, which they claim to have mailed multiple times. To date I have not received any communication other than multiple phone calls from this collector. 

They claim to be representing the City of XXXX, who was my former Electric provider over a year ago. I believe that I left my account in good standing and would like verification of the debt that CSI states that I owe. 

I have asked again via phone for this company to stop calling me. I was provided w/ their mailing address below and plan on sending a cease and desist letter via certified mail until they can validate this debt. I have also requested that they send me a letter via certified mail if they are in fact having issues getting a letter mailed to my address. 

Any help with this is greatly appreciated. The collector is more concerned with how I plan on " handling the debt '' instead of helping me verify that this is a legitimate collection. I will not be making a payment until the debt is verified in writing. 

Credit Systems XXXX XXXX, TX XXXX