Medihelp ****

Medihel please help I am not sure if I am being ****med using Medihelp, I was handed over by medihelp to a company called MacRoberts Attorneys but I don’t seem to get hold of them, I have paid their account in full but I still get smss saying I am owing I have been trying to call since end of November when I paid them off. They keep on telling me they don’t have my account, someone will call me or I should cal again later. Now I am suspecting that I was ****med but I am just worried that my name is being dragged and red flagged in the process.