I think sometimes it's because of the attention that workers give. Sometimes it is time to ask for the key to enter the bathroom and they are always busy and do not pay the necessary attention to you. And only when one gets angry is when they do things quickly. But it is not the only restaurant that does this.
I am an Uber driver, almost always like that place, and almost always when I request the toilet service, the answer is the same, even the ladies toilet is also closed.
It is possible that it was broken at that time, I have been and I did not encounter that problem.
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