Southwest Credit Systems, L.P. Debt Collection Complaint

Southwest Credit Systems, L.P. Debt collection department,

Other (i.e. phone, health club, etc.) False statements or representation Attempted to collect wrong amount Texas

I recieved constant calls from SW Credit Systems L.P. # - about a - - for $380.00 that was not mine. I call several times informing them it wasnt and I never lived in the - area. They said someone must have gotten my Soc Sec number and they wanted me to pay it anyway. I refused and now I see they have placed my credit in collection and My score has dropped from - to -. I am sure this is an unreputable company after the many phone calls I made to them. Please let me know how to proceed in getting them to remove this black mark and completing this complaint. Thanks -