cornetto

I was interviewed and two days later received the acceptance letter.

I have received a letter from Columbia saying "While the faculty of the Department of Sociology was not able to offer you admission to its doctoral program, it has decided to offer you admission to the MA program, beginning in the Fall 2019 semester. Although your application to the doctoral program was strong, the Faculty Admissions Committee was able to admit only a small percentage of this year's extremely competitive PhD applicants. The program to which you have been admitted culminates in the degree of Master of Arts."

I still haven't heard from them

I am one of the two.