ERC Debt Collection Complaint

ERC Debt collection department,

Other (i.e. phone, health club, etc.) Cont'd attempts collect debt not owed Debt was paid Texas

I received a letter stating I owe $600.00 to - from a collection agency I called - and when spoke to a phone associate and mention I did n't use - and never use there cable or requested there service he mention a name that I do n't know the person when ask to verify if the information they had on file was correct and I let him know that my SS # is mine but not the name they had on file so was transferred to fraud department I told him the same information but now he would n't give me the name and city were the account was open that I had to submit my ID and a police report so I went to my local police department they said I have to file were they used my information that I could n't file a report local so again I called - now they said I needed a supina before they could release information but I ca n't place a police report cause I do n't know were they used my SS # and - wo n't give me that information so I called - to place a fraud alert on my name and I also file on FTC.GOV/THEFT wed site so now I do n't know what else to do please help.