I have the tredded c503 they had to issue me a new Credit Caed.
Hello @Richard Sturgeon,
A CC-503 error occurs when your financial institution tells Quicken that your login credentials are incorrect. I invite you to attempt the troubleshooting steps below to see if this resolves the issue for you. It is recommended to save a backup before proceeding (just in case). You can also find these steps as well as more information in this Support Article.
New passwords: If you are required to make a new password, be aware that some special characters may cause errors in Quicken. These special characters are the ampersand (&), left carat (<), right carat (>), backslash (\), and forward slash (/). Additionally, while Quicken does not have a character limit, your bank may have one.
If there is no option to delete and update the password, or if the login ID/username also needs to be changed:
After the reset process is complete, attempt your online session again.
Try Deactivating and Reactivating the affected accounts:
I hope this helps!