City Property are such ****s

On Monday when applying for credit at an institution I was advised that I have an account for city property, which I found strange given that I had moved out in August and all payments were made before I moved out. Today I find out that city property has reported a missed payment for September but I was already out and all monies owed to them were paid. This is extremely wrong and has affected my credit record negatively. ******* company because they had this done to my husband and a cousin. This is what city property does. They mess up for record AFTER you leave and think you have terminated the relationship legally and lawfully. ****s!