Please try the following:
Refresh the page and try again
Log out of MechanicDesk, then log back in
Close your browser completely and reopen it
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Open a private/incognito window
Clear your browser cache and cookies
Turn off any browser extensions (like ad blockers)
Restart your computer
Try on a different computer or device
Ensure your card details are correct
Check your bank app for any pre payment approval messages
If it still doesn’t work, pleae contact our support team.