I'll make sure that you can temporarily lock your card, noblepainters.co.
Since locking your card need to be accessed privately due to security reason. I'd recommend contacting our Support Team. This way, we'll be able to pull up your account in a safe session and temporarily deactivate the card.
Here's how to reach them:
Select the Help menu.
In the Assistant window, enter Talk to a human.
Enter your brief concern in the field.
Click I still need a human until you see the Get help from a human option.
Choose a way to connect with our support.
To ensure you'll be assisted immediately, our support is available from M-F 6 AM to 6 PM PT, and Saturday from 6 AM to 3 PM PT. For more info, please check our support hours.