They were sent packing on Sunday night's live eviction show while Adekunle, Bella and Bryann were saved by fans.
Being the show's riders, Rachel and Chizzy cannot be evicted and at the same time, cannot win the grand prize.
Chichi won the week nine Head of House game last Monday and by virtue of winning, she holds the supreme veto power to pick two other housemates for a spot in the grand finale.
Big Brother gave the housemates 90 minutes each to pitch to Chichi why she should consider them for the two spots.
After the conclusion of the pitching, she picked Daniella and Phyna.