Can you post the reason the system listed, and possibly copy the text of the message? I'm guessing that some robot found the logos "too large" in number of bytes or file size, not image size?

I don't know about your auctions, but it takes many hours if not a half a day for the Paypal logos to be added to my auctions. So they wouldn't be the likely cause the auctions to be closed.

What exact wording was used for the reason your auctions were shut down?