Freestreem OTI Cable

I purchased a box called MI TV to stream tv and paid for my Amazon firestick to be fixed The box was $and the fix to the firestick was $for a total of $ Paid cash The box started having issues the first day and I contacted Bill who said he would be back in days with my firestick and a new box He never showed up and kept promising he'd be there in a day or so Never happened and after many calls, texts, etc he doesn't answer He still has my firestick and will not return it or fix the equipment he sold me He has many phone numbers and addresses that I've found after doing more research Here are all his numbers: ***-***-***, ***-***-*** (cell that he used to call me),***-***-***