Hi trixie12, welcome to the forum. It's a really great place to get information and help for anything, Calis related or not.
I've seen your other post about visas but unfortunately can't help you there, things like that confuse me too! Someone will know the answer and hopefully be along soon!
Oddly enough we came out to Calis on the 9th May for two weeks and our visas are the same as yours 8th May to 3rd November. We're also planning to come out again for about a month in October (just trying to find half decent flights) but will be back right at the end of the month.
Where do you stay when you come to Calis, or have you got your own place?