They did provide support. This is clearly a security issue that requires more than a support dept. is trained for, hence the whole theme of the thread "central databases".
What support? Telling Alexis that her account was locked because it got flagged is support?
Support really should have no business making claims of "flagged by central DB" or anything of the sort in the first place - he/she should have simply said that the issue has been referred on to the relevant department and that Alexis should expect a response within whatever period of time.
Instead, support apparently claimed that Alexis is on a central database (implying fraud of some sort).
Now assume that this is not true - Alexis has thus come her to complain (and probably rightfully so) and the management is NOT aware of the issue - comes back to work on Monday and sees a huge fire which could've been dealt with at the very beginning in a few minutes if support had simply asked the relevant person to have a quick look at this.
Instead, they have a fuming customer who's now told quite a lot of people about how she was apparently treated... potentially causing them to not play at related casinos.
If you ask me, NOTHING is clear here - it's not clear it's a security issue, it's not clear whether or not support can do anything about it, and it's not clear if management are aware of what's going on.
And let's be honest, if you closed your casino for Xmas, you'd probably get stick from your loyal customers. So 6 of one, half a dozen of the other. Like I said above, you'll never keep everyone happy so you sometimes have to make the decision that has least impact.
If your local shop decided that it was going to close for X'mas, would you have given it stick too?
Every business has a right to choose when it wants to be open, and when it intends to close for a holiday provided they give you enough advance warning.
So - if they chose to stay open - then they should've at least been able to operate in a relatively normal manner. Not necessarily full service - reduced service would be somewhat acceptable but what we've seen so far is close to no service - doors are open, help yourself, but we can't assist you until Monday.