You can amend your existing Direct Debit instructions, and also change your bank details, within Barclaycard online servicing. Simply follow the instructions in the Direct Debit section.
Please note, if you make any changes to the amount we collect within seven working days of your payment date, these changes may not take effect until your next payment is due.
Also, any changes you make to your bank details within 12 working days of your next payment date may not take effect until your next payment is due.
Register for, or log into Barclaycard online servicing.
Alternatively, you can contact our Customer Services Team.