thanks for the replay yes I want to listen for more coins and if more coins are added I want a countdown timer to increase by 10 minutes per coin
So, what is the problem?
On any given pass through loop(), some time has elapsed since the last time you decremented the time remaining. If that is enough time, and the remaining time is not 0, decrement the time remaining, and update the variable where you store the time you did that. If the remaining time reached 0, turn the appropriate pin off.
On any given pass through loop(), a coin was, or was not, inserted. If one was, increment the remaining time. If the time was 0, turn the appropriate pin in.
With meaningful names for variables and functions, it shouldn't take more than 30 minutes to get working code.