Why is this change necessary?

The reason for the change is due to the high vandalism of the current honesty box, the high costs of staff having to collect fees & process back in town and downtime of staff having to process when they could be servicing the course. 

Will course playing fees go up because of this change?

No, fees will remain the same and we hope that this new payment system will be more cost effective in the future, meaning more money being spent on keeping the course looking good.