Third party provider scam

I started working for Burt's Mobile who claimed to be a third party wireless company that works with at&t. The boss Steven Carter claimed all website graphics needed to be approved by at&t, well I and a numerous amount of other artists fell for this job scam. He had us working for weeks and when it was time to pay he never payed any of the artists. He also says he works with charities such as make a wish ( we have confirmed that he is not apart of make a wish), and the Trevor project (lgbtq)- which we are still trying to find out. He is now on a search for new artists to replace us as we havnt been payed, he is a scam and if he truly works with at & t then I believe its up to at&t to shut him down.