Getting some help

I was trying to reach out to anyone willing to help… My dad lives in a pretty euff nebiour hood .above a bar also … But its what he cam afford … Anyway he has camra and alarm but its junk and adt wont come out to fix it and keeps over charging his card … Its a mess … He does have wifi so i was thinking if anyone had any unused ring equment or anything that could help with sucurity … People always opening his door thinking its the bar … Please help thanks