Per mention, for this software key panel lock, YCM we gave the free of change for exhibition machines only, for the rest of machines, it will be charge USD 800 for 1 machine.
It is the company policy, but I think it might not hard to copy this function from exhibition machine.
PS. 1. Please understand the price you applied this our bottom price already.
2. for delivery time, if you are okay, I will book on the production line first and at the same time, I applied the price again.