Does she normally return emails in a more timely manner? If she called during the time of the appointment to see where you were it tells me ahe didn't receive the emails. I would be upset also. I would discuss it and how you should handle such things in the future.

The first time I emailed EMDR T about something going on it took a few days to reapond. I was upset and the negative thoughts happened. She dis appologivw repeatesly and admitted sje can be bad at reading emails. I now am supposed to text her which is in uncomfortable.