How to update your credit card details. SMATA Support Manager December 24, 2019 00:44 Updated Follow these steps to update your credit card details: Go to your Settings page from the drop down at the top of the page under your Contractor Name. Under 'Profile Settings', click on 'Update Credit Card'. You can delete any old cards and add your preferred card. Agree to the Terms of Service by clicking the check box. Click on 'Update' button. Related articles How do I get paid? How to upload an invoice into SMATA?