Check through your eBay messages,  email,  even Spam,  if the code is not there,  contact Customer Services,  see if they can shed more light on this. 

Please.  if they do give you an answer do come  back and tell us,  as it could help us to help others if they face the same issue,  thank you.

To Contact Customer Services I recommend using the link below for a Call Back option, and call as close to 8 a.m. on weekdays as possible, as there's more chance then, of Dublin answering.

https://www.ebay.co.uk/help/eua?id=5190

Lines open between 8 a.m. to10 p.m. on weekdays.

9 a.m. to 6 p.m. on weekends

Automated assistants are available outside these hours.

@skull_jackson5