Monopoly Slots

I know there has to be a program or something to get unlimited coins or at least a lot.  I have no computer whiz friends so even what I might find, doesnt make any sense to me.  People who sell coins to you, how do they do it?  Is it bitcoins, is it a software?  I had someone selling coins to me but for some reason we clashed, i have no idea what I did wrong to him but I decided it wasnt worth what he was putting me through and started researching it on my own.  I have tried Cheat Engine, didnt work, Lucky Patcher didnt work.  Not sure the bitcoins is the right thing so I dont want to spend money on that and it be wasted.  I just know there has to be something out there if others are selling coins.