Work source Phone scam, Internet

I was contacted by jhon at work source saying he had extra work in the area doing work on forclosed houhes in my area but i had to pay for a background check witch i have done before for service magic and it was lagit . so i sent the money via check router no. .then i didn,t here from them for a week  i finely got ahold of them  i told i wanted a refund because i thought they were a bogus co. all theay do is rout you to a another ext. till you hang up .I wish i knew about this site first  If you pay with a credit card you can dispute it .