If you used Clearing in 2024, how did you find it?

Hey, So i was entering for a competition, and For which i needed a "note",

The deadline was close and the note could only have been given by a teacher, so I reminded him one day, and the next day I was not able to go to school so along with the absentee reason, I asked my parent to put just a small thing asking them if they have submitted, I think it reached to him in a bit wrong way and here's what I received-

[name], I do not appreciate being pressured either by you or your parents to complete the "note". I gave my word that It would be done on time and I always keep my word. If I am to assist you I would appreciate a liitle respect in so far as my word and actions go. I am extremely busy and you are not the only student with a call on my time.

Is this the end of the world? Or is it "move on"