I bought 10kUSD of I bonds via treasurydirect.gov. The bank account I mistakenly used to purchase the bonds only had a few cents. To my surprise, my account on treasurydirect.gov indicates that the I bonds have been purchased:
The financial institution that manages the bank account I used, namely Fidelity, sent me a Direct Debit Failure Notification, understandably so.
How can I correct my mistake?