got a random text from this # saying "need some cash? you can easily get $1200 wired into your bank account tofay!......." and so on. what is this

Leave me alone.

"Still need some quick cash? Get up to $1500 wired into your bank today! just fill out an easy 3 minute form at www.1500tome.com (reply STOP to cancel)."

LEAVE US ALONE.  What is the best way to stop this, should i not respond, is there an easy way to block numbers, some kind of *##?