Umingle Banned My Account After I Typed “f15” and I Need an Explanation

I am writing regarding an issue with my Umingle account, ID: 19fef101. My ID was banned for simply typing “f15”, and I do not understand why this resulted in a ban. This happened about an hour ago, and since then I have not been able to use my account. I have not violated any rules to my knowledge, and I believe this ban may be a mistake or an automated error. I kindly request that my Umingle ID 19fef101 be reviewed and unbanned as soon as possible, or that I am at least given a clear explanation of why this action was taken and how I can avoid such issues in the future. I also ask that you inform me of the total duration of this ban and when my account will be fully restored, and that you provide your response to me via the email address linked to my Umingle account.