MBD - collect from the right people, and get the plot on the first NO !

So I am inundated with calls from this company for a person I don't know for an account I don't have (Truworths) - really bad for the brand, and even worse that the calls keep coming despite my number being the one I have had for life. I have registered on their do-not-call list - what a joke. Returning a call gets met with a disconnect - bad client service. Call centre is unprofessional, and if this is the way they treat the man on the street - I pray for those that have subscribed to this company for help. It is non existant. Expecting an apology and removal of number from auto dial for follow up calls -not a chance.