I am seeing that one of the mintdice official accounts is actively answering each and every question here.
This is a good sign that they want to take care of their clients or potential players.
If they will continue this kind of response to every user here, they will earn respect in no time.
And they already secured their license, it means they are sincere in joining this gambling business

But to lower the minimum deposit and withdrawal limit, maybe in the future you can integrate lightning network in your payment system.
Your current blockchain fee even choosing the economy rate is too high for small time players.
I hope you will consider the LN in the future to catch those players.