Mbd barbaric act

Good afternoon, I had this company called mbd really this company is a nerve, firstly they calling me like i know them i had agreement with them they have a nerve to call me 5 times in a row, they are rude but they Im not a roller coaster ride they even calling at my work, where by i never authorises anyone to call at my work place, I told the agency must stop calling at my work he told me he will not gonna stop really, they calling me about Mr price 2014 old depth really its 2020 now.