I can't post a complaint

Good morning, I can't post a complaint because my surname has an apostrophe and the message "impossible to send prohibited characters" appears, but the box containing my surname is not editable, I can't delete the apostrophe.

Hello, it's weird. I see no way you could not edit your surname while filling out the complaint form; you see no filling spots are locked upon filling in the name.

Could you kindly show me a screenshot or better yet capture a video showing the problem in real time, please? I suspect a possible technical anomaly like hashes or cookies...