[Spike]

I don't know if we already know this

If they win their shopping challenge, they'll be rewarded with tokens which will get them hot water, hairdryers, hair-straighteners - that kind of thing. It could lead to tough-living for some.

Source

I don't remember Big Brother ever doing this. Looks like BB is getting nasty because housemates might be without warm water.

Also it says that next to the jail is chatroom for 2 people and it feels closed off so expect some bitching there.