Regarding athorisation/signup what the customers fill in if they tick the box they will get this email that I was on about that you are probably not aware of if you have not tested it yourself.
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You indicated that multiple signatures are required to authorise Direct Debit payments from your bank account.
To complete the payment process, please add all necessary signatures to the attached mandate form and email a scanned copy to
help@gocardless.com.
Alternatively, you can post the printed copy to:
GoCardless Ltd
338-346 Goswell Road
London, EC1V 7LQ
If you have a joint bank account but you are authorised to set up Direct Debit payments without additional signatures, you don't need to fill in the attached mandate. Please just reply to this email to let us know.
GoCardless processes Direct Debit payments on behalf of ********.
GoCardless is regulated by the Financial Conduct Authority as an Authorised Payment Institution.