I think email because I think they want to see your other offers laid out so they can match or come closer. Also I don’t think it’s one persons decision - so if you email it, it can be discussed by the admissions committee as a group.
I think email because I think they want to see your other offers laid out so they can match or come closer. Also I don’t think it’s one persons decision - so if you email it, it can be discussed by the admissions committee as a group.