please check your facts before calling people

Out of the blue today i received a call on my work number about a cell c account and they want to make a payment arrangement with me and threatened me with legal action the only problem is i dont have a cell c account this matter i sorted out with cell c in 2008 since then i heard nothing from this company and out of the blue a external company demanding payment on my work line this is ******* and not exceptable i want my details removed from this company list cause i have no links to the company and even if i did its prescribed debt and the phone calls and demands is ******* and DMC should check the details first before randomly calling up people and demanding payments i demand a confirmation that my details has been removed and i want a my work number to be removed and i wanna know how my work details was obtained cause i never gave it to you guys . this bulling needs to stop and companies like DMC SHOULD CHECK THEIR FACTS FIRST