Help with this postage query

[janxmas]

I sold an item and had put UK postage postage. The buyer is in Spain and has asked me for an invoice with the new postage amount. How do I do this?
Thanks

donmt know how to do invoice (looking up amount is easy on royal mail website) but has been covered here before so try a thread search. if no joy, try the ebay community boards on the ebay site as they really do cover everything!

Thanks

calculator

Thsi is much better than the rm site