Rent a student DID NOT PAY ME!

I worked for rent a student for John Ashcroft from 6 Decemberto 9 December 2018 and to date have not received payment. I contacted him and he hasnt responded to my emails ,I know other students that have also not been paid. Apparently john is now in the UK. John we are students and rely on this money to pay for studies. Why **** young innocent students PAY THE MONEY....