My Telegram API message body looks like this:

text=<code>(1.00) H %0A</code>&parse_mode=HTML

i.e. I am trying to send this string:

(1.00) H %0A

i.e.

(1.00) H

with a new line.

I am using the code tags so I can use monospaced font.

Through trial and error I’ve learned the H causes the message to be rejected with 400 Bad Request (but no further error details in the response).

If I remove the H:

(1.00) %0A

it works successfully.

How do I avoid getting any rejections due to things like this/what am I doing wrong?