I'm sorry that you're having trouble adding accounts to Mint, I understand it an be frustrating when accounts won't sync (especially multiple banks like this). There are different reasons for each of these issues, I'll start with Credit One who is currently blocking our aggregation attempts. Unfortunately after many attempts to resolve this, we have found them unwilling to cooperate so there is nothing more we can do at this time. I apologize for any inconvenience this causes, but unfortunately it's out of our hands.
Texas Dow ECU is failing to connect due to an authentication problem. This is usually related to one-time passcode methods of multi-factor authentication, which is hard for us to support as we don't have any way to retrieve said passcodes. Some banks will let you turn this off, if that is the case then we would likely be able to connect, but otherwise there is very little chance we'll be able to aggregate from this financial institution. Again, I'm sorry for any trouble this causes as well.
Finally, First National Credit Card is showing an error for no open/active accounts when we log in with the provided credentails. Assuming you do see at least one open account with recent transactions when you log in to their site (https://firstnationalcc.com/CardmemberServices/Default.aspx) directly, please use the Contact Mint form to report this issue to our support team for further investigation and assistance.
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