French phrase
Merci de m'avoir dit ~.
Meaning
Thank you for telling me ___.
When to use it
Expresses thanks for being told something. It is polite and can sound somewhat formal.
Example dialogue
Je t'ai envoyé le dossier.
I sent you the file.
Merci de m'avoir dit que tu m'as envoyé le dossier.
Thank you for telling me that you sent me the file.