Harassment by Platinum Life

This company SPAMS people mercilessly with sms offers and phone calls, promoting their service, telling me I qualify for a gift, lying through their teeth saying someone referred me, I keep reporting and blocking the numbers as ***** and spam but they keep using different numbers. I am now considering LEGAL ACTION. They are the most persistent sods who have NO regard for privacy of others, do NOT know how to SPELL the word NO and I flatly refuse to accept this harassment any longer!!!!! I am now laying a charge of harassment and ilkegal spamming against Platinum Life.