texted that I had just won a $1,000 dollars free gift card

I don't know how they got my cellphone number, but to send me a bogus claim of winning free $1,000 dollars gift card is a bit much.  there should be some action taken against whom ever the persons or person that is claiming to be a representative of your company, if they are not. I am asking your company to assure me and all the people that are good patronizing customers of your business, that something will be done to alleviate this problem and demeanor