Harrasment

I received and email from the company advised me that my Edgar's debt has been handed over to them .

I then rep**** to the email with my paid up letter and I advised them that the account is even closed.

They rep**** to the email,however I continued getting calls from their consultants and I also advised them about my correspondence to them .

I feel harrased by these calls that I receive every morning from as early as 7 am .I don't understand why can't they fix the issue with their client because I'm worried this will affect my credit record