@Muhammad Farrukh Thanks for posting in our Q&A.
For this issue, did you use the following PowerShell Script to get the csv file?
https://learn.microsoft.com/en-us/autopilot/add-devices#powershell
If yes, please check if the device serial number in the csv file is same as it shows in the screenshot you provided.
If there is anything update, feel free to let us know.
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