you go on towww.samsclubsrulessmellmorelike.co.uk and ring the number which is 0800 915 635 to get free pass and as many tickets as you want so go now or just call now : ).
According to Sam's Club's website, you can go into their store and request a One-Day Pass but you will be charged a 10% service fee if you are not a member. See the related link for more information...