I've never seen a machine like this before and need some help .   Sure , no problem . What are you trying to get ?   I want to buy a drink .   OK . This machine needs you to use that change machine first to get correct change .   I've got the correct change already .   First you put your money in the dollar slot or the coin slot . The dollars have to be smooth .   OK , what next ?   Just know that sometimes the money doesn't go in perfectly the first time and you have to try again .   OK , next ?   Choose what you want and push the button . Sometimes it takes a couple of tries .   I agree with you .   Hope that works for you ! 