A buyer is trying to purchase three items from me, but ebay is forcing them to pay for each item with full postage without the ability to wait for my invoice on the lot. I told them to use the website instead of the app, but still no luck. They've given up now and I've lost the sales.

A couple of days ago, another buyer had no problem doing buy it now on several items WITHOUT have to pay for each one first. I was able to combine their postage for them easily.

This inconsistency has been going on forever, including when I'm a prospective buyer as well.

Anyone know why the system works for some and not others? Both buyers are in Australia.

No responses from the usual lurkers who want to call me an idiot for not already knowing the answer, please.