If I recall correctly, Lotus by the Saddle Dome used to have some kind of deal on large orders of spring rolls.
How much are you looking to spend though?
edit: Looks like they have a happy hour where they are $5.95 / dozen (see page 2)
https://www.zomato.com/calgary/lotus...ry/menu#tabtop
I am not entirely sure what terms and conditions there are on the happy hour specials though.