Japanese phrase
先日の件、よろしくお願いします。 sen jitsu no ken yo ro shi ku o nega i shi ma su
Meaning
Thank you in advance for your help with the matter from the other day.
When to use it
Politely asks for help with an earlier matter. It often closes a business exchange and shows trust that the other person will handle the matter appropriately.
Example dialogue
先日の件、よろしくお願いします。 sen jitsu no ken yo ro shi ku o nega i shi ma su
Thank you in advance for your help with the matter from the other day.
はい、対応しておきます。 ha i tai ō shi te o ki ma su
Sure. I will take care of it.