天美麻豆

i'm knn murthy from Bangalore - india, working in yanbu - Saudi Arabia since 13 months. i'm getting calls & messages on my stc number continuously, from an unknown person. I don't know how to block such incoming calls, as it is disturbing me lot. I don't know anything about that person and his number in the past, who gave my number to him? I don't know really. i'm fed up as he disturbes me every time. he speaks in Arabic which I can't understand as I don't know Arabic. kindly help me, how to restrict his number from calling me and from sending his messages to me. regards knn murthy