Confusing, isn't it.
You pay £104/wk rent, £45/term utilities and £3.95 a dinner for 6 dinners a week for the term ahead.
Dinners are all three courses, and generally pretty decent. You get refunded for up to 24 dinners a term if you miss some- no one has all of them. Breakfast and lunch you use a card, and then pay for it at the start of the next term- lunch is about £1.50-2.50 depending on what you have and is generally pretty good. Breakfast costs about the same, and is a bit rubbish- buy a box of cereal and eat it in your room instead. You can also buy baguettes and burgers and stuff from the bar for cash on a lunchtime, at pretty reasonable prices (£1.80ish for a baguette).