I got a text with my name and a link to shop at Poshmark with a $10 promo code. I asked "who is this?" and they replied thanks for the message. And configure my SMS URL to change this message...reply help for help or stop to unsubscribe. ....I just opted out, BUT then I got the exact same message from this number: 650-353-5670 ....so who knows what's going on?! I'm thinking if u click the link it sends out this to everyone in ur contact list, but not sure bc I refuse to click the link.