Try calling the office (214) 242-9944
They were open a couple of weeks ago when I last went to test, but I have no idea about this week with the weather. The phone I have for them is: 214-242-9944 if you want to try asking them directly. When I try to schedule my next certification exam there, the scheduler shows they have the rest of the week open starting tomorrow, but I wouldn't trust that without calling.
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