on hiveposh.com you have to unlink your previous twitter account to be able to link a new one, but if you can't authenticate an unlink since you can't access your previous twitter account we'd have to manually remove it from our side.
But again there's very little point in doing so at this point in time since POSH and twitter functionality is close to non-existent and this initiative doesn't require you to have your twitter linked to your hive account on the website.
Okay I understand, my twitter account can't be accessed at all and I can't unlink
Thank you very much for your feedback