A seller cannot delete their account if they have transactions within a 6 month period, but eBay can remove them, for any breach of their selling regulations.
If this is the case, you need to contact CS for their help in opening a case / refunding you.
Contact eBay Customer Services it's not easy nowadays to get a live agent , but some have had success using the app, otherwise keep typing in ' I wish to speak to an agent' and this too can work.
Use this link to contact CS, if you can try at 8 a.m. on a weekday morning also more chance there for Dublin to answer.
https://www.ebay.co.uk/help/eua?id=5190
@daveknowles2
