EB are having a mega sale and one of the items is 15% off all iTunes Gift Cards.
Fine print: Offer valid from February 2nd 2015 to March 6th 2015. While stocks last. Not to be combined with any other offer. Offer valid on pictured denominations only (That is $30,$50 and $100). Excludes $20 cards. Limit of 5 discounted cards per customer.
http://www.giftcardsonsale.com.au/2015/02/get-30-itunes-card…
Cheaper on office works