About 411,000 seniors nationwide were double billed for their Medicare premiums in September due to a glitch in the system.
The "process error" affected people who have their Medicare Part B premiums deducted from their bank accounts through Medicare's Easy Pay System, according to the San Francisco Chronicle, which cited a statement from CMS.
Roughly 20 percent of the erroneous charges were returned by banks and financial institutions. CMS is working with the Treasury Department to credit other accounts as soon as possible, according to the Cincinnati Enquirer.
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