Hi, yes that's my point exactly, we're not supposed to give third parties our personal tax information as it can be used for scamming or other nefarious purposes. The people at eBay have clearly been instructed to quote the 'computer says no' mantra, or they're just a bit thick between the ears.
The more complaints they get, the more likely they are to review the matter. If you cancel now, they won't care as you're only one person. Better to organise and gather in numbers so that they then see they'll lose large numbers of platform users and the associated fees they say they don't charge to sell on eBay (Buyer protection fee that's really paid by the Seller who has to lower their initial price to keep the BIN price to the Buyer reasonable).
My suggestion is that those of us who are hacked off enough to cancel their account advises eBay that Wednesday 5th November 2025 (Guy Fawkes Day) will be the 'mass cancellation day' as that'll hit their Christmas trade if enough people join the protest. And in the meantime, everyone stops selling or buying anything on eBay.
