The machine case should have had a rectangular box that held the two plugs, sort of like an outlet box. (See picture) One receptacle is for the motor and one for the light. The foot controller wire would have come out of the receptacle box. Looks like the box, controller pedal and receptacle didn't come with your machine. I would ask the seller how he knew the machine worked without the controller pedal. Maybe request a partial refund in order to purchase a pedal and controller?