Well thank you all for your response! I was not aware that the cantina is on a 12 min refresh. For some reason I was under the impression it was a 10 minute refresh.
I totally get why they did what they did. But I still think it needs a bit of tweaking. If the refresh rate is not something that can be changed, AT LEAST allow us to have one refill at 50 crystals, then move to 100 and 200 respectively.
Believe me, this is not a post "to whine about the mechanics of the game bc I'm entitled or impatient". This is just merely an observation I had, that could enhance the gameplay without deviating too much from the original design.