Hi is anyone else finding it hard to cancel a customers order due to the new eBay managed payments system ?

We've had an international buyer purchase something however due to their location and due to our previous experiences being burnt (multiple, multiple times) with international postage during the Coronavirus pandemic (lost parcels, 3-4 month delays, which of course we never win in the resolution center). We'd like to cancel the order to protect both of us however cancelling the order is now not possible and redirects to an 'eBay error page' whenever we try,