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