Log in to your 1-grid Customer Zone.


Select the “Billing” drop-down menu then select “My Debit Details”.


Click on “Edit My Account Details”.


You will see a drop-down menu for “payment method”. Please ensure that you select “My Debit Details”.



  • Enter your Bank account details:



  • Read the Mandate details that follows.
  • The last step is to tick the checkbox and then click “Submit Bank Details”.