Who did you speak to when you Contacted Customer Services?  I mean was it Dublin?  If not,  you may have received a generic response,  as some overseas agents unfortunately do just have a script they read from, and may not see the whole picture correctly,  and have not dealt with your individual issue .

Contact CS,  but only speak to Dublin you'll hear if it's the dulcet tones of the Emerald Isles as it's a Call Back system using this link...

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

I wish you the best of speedy luck, as this is obviously,  one hell of a lot of money we're talking about !

Do come back and tell us ,hopefully of a successful update, on this matter.

@uk_photo_prints