I do not have outstanding debt and recently paid off any debt with collections. The number XXXX has been calling my cell phone numerous times everyday but leaves no message. I googled this phone number and found out that it belongs to a scam Medical Collection Agency which currently has lots of law suits against them. 

" ( XXXX ) Causing a telephone to ring or engaging any person in telephone conversation repeatedly or continuously with intent to annoy, abuse, or harass any person at the called number. '' I would like the company to cease any sort of communication with me as I believe this to be harrassment and fraud. 
