I don't think you can buy Club Penguin membership for a week, as far as I know when i played it it was only used for months of memberships and 5 euro/dollars/pounds. But i quit Club penguin because it is babyish, for me. I am 15 and you know haha. So, I dont think you can get membership for a week, I am sorry :-)
It cost £19.00 for a 6 month membership for club penguin
12
It depends on how long you want your membership for.
36
$7.95
The 6 month membership card is $29.95. By Gold Tommy from Club Penguin
£7.59
7$ A month.
3.95
$19.95
$10.? ._.
$17.85