I don't think you should let this person off the hook, Sowa. Could you find out when rally will be offered again, when she will have everything set up, and make up the 30 minutes at that time?
Just a thought - maybe contact the Better Business Bureau. Let them know the problem and that you'd either like a refund for the 30 minutes you missed, or to receive the remaining training at a mutually acceptable place and time in the near future. Maybe they can mediate a solution for you.
Your time is just as valuable as the trainer's. She owes you 30 minutes of work, for which you paid. I don't think it's okay for her to take your payment and then not provide the service. Just because other people have said oh, forget it doesn't give her permission to assume the same for you.
((((HUGS)))), Clover!
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