I'm new to the Bay of E so I could do with a bit of guidance from you people

I want to advertise something on there with a reserve price (no probs so far )
Once I've filled all the sections out it comes up with a price that I have to pay (that's cool )

What I want to know is... If the item doesn't meet the reserve price do I still pay the higher fee (reserve price fee) or just the basic listing fee?

Also, what about if I remove the item for sale before the end of the auction?

Thank you please