I don't think Mira does her own comms, jojo, so I doubt her 'manager' even told her about your outfit request, or I'm sure she'd have obliged. Some of these Thai middlemen are fucking useless. Those first few minutes can set the tone for the whole occasion, and with you thinking she's bone idle and uncooperative, and her no doubt sensing your disappointment, this was a lousy start.
Perhaps I'm trying to make excuses for her, because she's my current favourite

and I must say it sounds as though you caught her on a bad day, to say the very least. She doesn't put in a
performance, as many Thais do, and other reviewers have interpreted this as her being a bit unresponsive and standoffish, whereas I've seen it as just her relaxed, easy manner. We all see things differently, of course, and even the best of them can have an off day.
Sorry you had such a disappointment, and better luck next time!