There's a chance of 50% off or 20% off but don't hold your breath.
*Terms and conditions apply. Coupon code valid until 11:59pm AEST Saturday 30/06/2018. Valid for Experience deals only purchased at http://www.cudo.com.au - excludes Travel and Shopping deals. Promotion requires a Cudo account, and is subject to terms and conditions found at http://cudo.com.au/info/terms-conditions. To redeem your coupon you must be signed in to the account linked to this email address. Apply the code in the 'Add Promo Code' field at checkout to reveal your discount. Mystery discounts are 50%, 20% or 10%. Valid for purchases over $39. 100 lucky customers will receive the 50% discount and 100 lucky customers will receive the 20% discount. Cudo reserves the right to cancel the promotion at any time. Promotion is limited to one-time use. Entire amount must be used in one transaction; no partial redemptions; may not be combined with any other promocode or specific offer. Promotion not valid for ticket or deal purchases required to be completed on a third-party site. If you return your purchase, you will be refunded the amount paid. This promotion may not be used in conjunction with existing credit or combined with other offers, including promotional certificates or other offers.
I usually read these as
Get 10% off and if the site is broken you might get 50% off
Tried 3 things. Got 10%