I agree with you, a complete fix.
Leah/Nikki vying for the attentions of Pete/Richard etc
Grace just to upset the apple cart by being her arrogant self
Mikey - well they had to include a bloke didn't they
Apparently 2,000 or so people complained to Ofwatch that it was unfair that they should have paid to see these idiots evicted, only for them to be placed back in, particularly with a chance of winning and even more votes being cast and peoples money being spent further.
The dontaing the 'profits' to charity just leaves a bad taste if you ask me.