Reference number on GSP

[jimmy4batty]

I have sold many times using eBay global shipping but on my recent sale there is no unique reference number 

it says ref#null

any helpplease?

cheers

[61stephenuk]

This does seem to be an eBay glitch at the moment use this link to contact eBay via call back or livr chat

https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid