I don't owe FOSCHINI-DMC Debt management should follow the right procedures

I have been charged for the online application by FOSCHINI and my name is under DMC Debt management. I was advised that I should submit an affidavit stating that I no nothing about the debt up to no avail. DMC Debt management keeps calling me using different consultants. I have done all I have been requested to do...DMC keeps on sending different settlement offer emails with different reference numbers.