Just noticed this deal while browsing the app. Looks like a good discount, up to a maximum discount of $1000 and 5 uses.
Store link: https://www.ebay.com.au/str/digidirectstore
Conditions. The offer entitles you to 20% off the purchase price (excluding postage costs) on items at digiDirect Store on eBay in one transaction during the offer period, up to a maximum discount of $1000 per transaction. A maximum of five applies. Multiple items may be purchased in one transaction (up to a maximum of 10 items per transaction or a total value of $1000). All monetary amounts specified in these terms and conditions are in Australian dollars (AUD).