From what you say ronnie, you are sending the item to a a UK distribution point and ebay is sending it on to foreign parts.

You are only paying UK postage, but surely how ebay works out the foreign postage is their problem.

Once it is received at UK distribution point, it is probably weighed and stamped according to where it is going, and the buyer is billed for that amount.

You have already had your share, so no problem.