Seems to work on eligible store as well as private sellers.
Offer Period. This offer commences at 10:00am AEST on 24 May 2022 and is available for a limited time only as long as it is advertised on the ebay.com.au site (“Offer Period”). eBay reserves the right to cancel the offer at any time.
Eligibility. This offer is available to eBay Plus members only
Conditions. This offer entitles you to discount off the pre-coupon purchase price (excluding postage costs) on Eligible Items during the Offer Period. Multiple items may be purchased in 5 transactions (up to a maximum of 10 items per transaction).
"Eligible Items" means items listed on eBay.com.au where a link to these terms and conditions and the coupon redemption code PLWKSAVE is found in the item listing.
"Discount" means the amount saved per transaction as set out below:
Save $10 off when you spend $100 - $499 in one transaction; or
Save $50 when you spend $500 - $999 in one transaction; or
Save $100 when you spend $1000 or more in one transaction.
Redemption. To redeem this offer during the Offer Period, enter the redemption code PLWKSAVE into the redemption code box during checkout. This code cannot be used in conjunction with any other eBay offer, coupon or voucher. You can only use the redemption code 5 times during the Offer Period. The code is provided to you as an eBay User and the limitations on its usage apply on that basis even though you may have registered a number of different eBay User IDs.
They sent me a survey yesterday asking what they could do to make me want to sign up for ebay plus. Guess this is what they came up with.