Debt collection — Clark County Collection Service (NV)

Not given enough info to verify debt. I have requested these XXXX accounts be validated and was told that they did not have to since it was not requested in the first 30 days. I never received notice at any point that I owed anyone any money. I have disputed this with the bureaus several times and spoke to this company directly. I am getting the run around and there is nothing that indicates this is mine. I want it off my credit report this is absolutely illegal what they are trying to do. I want a letter from them indicating they are deleting any reference to the XXXX accounts XXXX & XXXX.