There are no plans to change the 10-episode series, and the channel says in a statement that it "seems to be connecting with its audience." About 1.3 million people watched Monday's debut episode.
T-Mobile is among the latest sponsors to refuse to advertise on "Sorority Sisters." In a statement Thursday, the company says the program's content does not meet its guidelines.
A spokeswoman for Hallmark says it also is not advertising on "Sorority Sisters" because of consumer reaction.
Lawrence Ross, who's among the organizers of a boycott effort aimed at the show, says the goal is to get VH1 to drop the series.