If we try to update your account X number of times and keep failing we mark that account as "disabled" automatically. You can change that anytime by selecting any account and then enabling (or disabling) it from the Actions menu. If an account is disabled, it is not being tracked by AwardWallet, so it will always be excluded from automatic updates. For more details please review this tip:
https://awardwallet.com/blog/tip_of_the_day/29-account-disabled/