@retro_chic, I think it’s really good that you cared enough about writing the card to look into how to word it. I can’t see anything wrong with using ChatGPT for this. When I was younger I used to buy books that provided guidance on writing letters for specific purposes. Tools like ChatGPT can make this research a lot easier to do these days - and you have learned something different to what you would have written yourself. This shows you’re prepared to learn, and learning is how we grow - I hope I never stop learning.

As regards telling your T - I can’t see any need to do that. ChatGPT may have guided you, but you were the one who thought about using it as a guide - take credit for that.