International combined postage issue

[bygoneimages]

I have 5 lots won from a buyer in Thailand. Ebay will let me issue a combine invoice to include all the items, only 2.

In relation to the other 3 items I get the following message

"Invoices cannot be sent for items where eBay manages all or part of the postage. These items are excluded from this invoice."

How can this be as theses are foreign Items NOT subject to Simple delivery. I can also confirm I have not and never have enrolled in Global shipping so this is not the issue. Bad enough not being able to combine UK sales but this I think for me this may be the final straw.  Can anyone help?

thanks 

andy 

[snowylilliput-0]

Was this every solved as i have the same problem with nine auctions for one buyer , Ebay told me this morning it seems to effecting sellers who are not signed up to GSP which i guess they would like every international buyer to use because off the price they charged .