Tried to find out why they keep calling and the only answer I got was "give me your phone number" and I refused. This is obviously some sort of scam to try and scare people into paying off debts that are not theirs - DONT ANSWER!!!
This company is called CMRE Financial Services, 3075 E. Imperial Hwy., Suite 200, Brea, CA. 92821. (213) 289-5932. They are a collection agency for hospitals, clinics, urgent care, etc. Hopes this infor helps.