Unwanted continuously received spam

This company continually sends me unwanted spam to my cellphone from cell number ********** ********** . I have previously requested that they stop doing this. They have obtained and used my personal information without my consent. I demand that, firstly they immediately delete all my personal information, and secondly to cease and desist from sending me their unwanted spam. I will never do business with them nor will I ever recommend them to anyone I know.