Stalker

I constantly receive calls from this company it been almost a month now, it is very traumatizing as whenever I receive a call from this company that person who calls me tends not to speak but remains silents at all times. This is quite upsetting and its scaring me off as I believe this person stalks me all the time, without them talking for almost close to 5 minutes.If this continues I will be pressing charges against this company as I feel this is nothing but torture.I have requested my number to be removed as i am always called more than 5 times.