All the payments are with direct debit. It is only possible to make use of SendCloud when you have activated your direct debit.
Log in to your sendCloud account and choose in the left menu for settings and financial. Here you see the header 'direct debit'.
When choosing direct debit you see the possibility to enable direct debit.
When choosing enable direct debit, you will be re-directed to the page of the payment provider. Here you can fill in your payment credentials and make a 0.01 cent payment to complete your account.