Seen this being posted online... apparently when you go to vote for who to evict you have to go to the vault link, so maybe it’s a hint?
They seem to be taking more and more elements from the BBUK format, and a fake eviction to a secret room is definitely BBUK
Lets all pray this is true. That way I wouldn't feel guilty evicting Pilar as she'll put it to good use and get the boys out whilst Risha is in the house causing havoc!