The current 5% offers are site wide.....any seller, any item.

The higher value offers are usually more specific....some sellers, some categories and always a much higher spend to qualify.

Currently ebay has a nasty little habit of ending offers early.  They away with it by stating that the offer is available while it shows on ebay.au.

Problem is they are now closing the offers which have a specific ending date....the last 5% offer was claosed with 17 hours still to go.