Both these services require small deposit, automatic withdrawl for verification purpose, transferwise account does not support the automatic withdrawl part.
Hope that helps.
Same issue trying to add it as backend to Stripe, Shopify etc.
The account name will be required in future UK banking regulations, at last, so this issue may get resolved by Stripe, PayPal, etc., just not soon.
Looks like TransferWise are interested in fixing the debitable account issue.