There are some very good boothlings (2, maybe) at M/S. To get your black
card, you need to insist they call a slot host to the booth. The good boothlings
know to check all your play and will call the host with no prompting, but
several others only know how look at that day's play, or your play only since you
got your last cashback. The hosts all know how to figure your account correctly
(in my experience).
Just went through this with my spouse. It took three visits to get to the
right boothling.
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