Harrasment by ***

I have been a loyal Vodacom customer for many years. Now I am being stalked by a person who claims he got my personal information from Vodacom's database. The number that he calls from is ***. This person has been calling me quite a few times. I get short frequent missed calls from this number. <br> My personal details are to be kept quiet, and PERSONAL!!! <br> <br> I DO expect an explanation from Vodacom!!!!!! How will you make this right???? And how will you prevent this from happening again???? <br>