The Promotion starts at 8:00AM PT on October 12, 2015, and ends at 11:59PM PT on October 13, 2015. The usual 2% will be quadrupled to 8% back in eBay Bucks.

The offer is available on every qualifying single item of $100 or more.

Keep in mind that you don’t earn eBay Bucks when buying eBay gift cards, so the offer should be used to purchase other merchant’s gift cards that can be sold for a profit.

Right now the best offer by far is from InboxDollars at 5% cash back but this is not one of the major cash back portals. You can also earn 2 miles per dollar with Alaska Airlines Mileage Plan Shopping. Also you’ll earn points/miles if you use your favorite credit card, or just use the eBay gift cards you’ve already purchased.

Promotion details
The Promotion starts at 8:00AM PT on October 12, 2015, and ends at 11:59PM PT on October 13, 2015. Extra eBay Bucks can only be earned on every single item purchased that meets the minimum purchase requirement specified in the offer. Valid on multiple qualifying purchases made within the promotion time period. In order to qualify for the offer, you must click the email to activate.

*Qualifying purchase excludes all items in the following categories: Classifieds, Business & Industrial, Real Estate, eBay Gift Cards (within the Gift Cards & Coupons category), Bullion (within the Coins & Paper category), and eBay Motors.

Rewards are capped at $100 per transaction and $500 per Earn Period. Purchases must be completed during the Promotion period and paid for with PayPal before the Promotion ends. eBay reserves the right to cancel, amend, or revoke the Promotion at any time. Other restrictions apply. See Terms & Conditions for details.