French phrase
Je vous rappelle que ~.
Meaning
I would like to remind you that ___.
When to use it
Used to politely repeat information already given. Common in emails and conversation and slightly formal.
Example dialogue
Je vous rappelle que le paiement est dû demain.
I would like to remind you that payment is due tomorrow.
Très bien, je m'en occupe.
Very well, I'll take care of it.