Stop harassing me a

Vodacom life insurance. Why the hell are you harassing me?? Phoning me 12 times a day even after i said im not interested in the service you want to offer me?? Should i open a case and we go to court or what?? For about a week now everyday more the 5 times a day i have to see on my phone the same number phoning me for some ****py life insurance you offer. Stop it ****it or we take this futher. This is the number +*** that keeps calling me