The Virginia-based bank said in a tweet on Wednesday that its support teams are "engaged and working towards a fix" and reassured customers that they will not be responsible for fees related to the issue.
Debit card bank transactions have us seeing double today. Rest assured our support teams are engaged & working towards a fix. Hanging on the phone? We know the waiting game's no fun & we apologize for the holdup. In the meantime, you can login online or via the app for updates.— Capital One (@AskCapitalOne) January 3, 2018
We apologize that some Customers are seeing duplicate debit card transactions & experiencing long phone hold times. All hands are on deck working on a fix & Customers won't be responsible for any fees due to this issue. For updates, login online or via the mobile app.— Capital One (@AskCapitalOne) January 3, 2018
The bank could not immediately provide an estimate for when the issue would be resolved.
Some customers claimed on Twitter that the issue was so severe that it left their accounts overdrawn. Customers affected by the issue do not need to report the charges, the bank said.
While Capital One only addressed issues with debit card purchases, some customers said on Twitter that they were experiencing similar issues with savings accounts and credit card accounts.
The company cautioned that wait times for phone support are long and encouraged customers to connect with the company through online banking or its mobile app.