RBOXTV OWNER DEREK JOSEPH rbox lied to me and won't give my money back New Port Richey Florida

i was in florida in jan 2017 and bought this rbox at the home show in sarasota. i told the owner Derek i would need more time for the money back warranty. he said ok because i lived in ohio and would not be home to try it out in the 15 day warranty. he gave me 60 day money back warranty. when i got home neither one worked. i called the tech and he couldn't help me. i told him i wanted my money back. he said the warranty ran out and sent me a copy of the contract i signed and the 60 day warranty was crossed out and 45 days inserted.   i still want my money back. he tried to fixed  them 2 times he says. i got $385.20 in 2 of them