Can I reduce my Credit Line amount? Matthew August 19, 2021 22:35 At this time, we are unable to lower the amount available in your Credit Line. For more information on how Credit Line works, please visit this article:Overdraft and Credit Line Related articles Overdraft and Credit Line Do I have a credit line increase? Can I get a cash advance with my One card? What is Credit Line and how does it work? About Assist Comments 0 comments Please sign in to leave a comment.