Are you on managed payments?

And how long has it been since the item 'sold' ? (as in 'four days to the minute' or more)

There is mention in this thread, although supposedly not brought in until May, it seems it is already here for some

https://community.ebay.com.au/t5/Selling/More-bullshunt-from-eBay-now-you-can-t-lodge-UPI-cases-agai...