Everyone seems to take your side, I don't know your story and I don't know you. Here's what I can gather: your T felt that you were abusing his or her privacy and felt so strongly that they decided to write off your bill.

This may be a great learning opportunity. Put the tone of the letter aside (which does seem a bit harsh.) Were you calling/texting this person incessantly? Were you mailing them letters after they blocked calls?

You have an opportunity, sulk or learn. You can adapt or stay the same. I wish you the best of luck.

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