By default you'll have access to download any versions of our components that were released while you have an active license assigned in your Telerik Account.
Telerik Reporting 188.8.131.522 was released on September 12th, 2018 which doesn't fall into the range for active license that you currently have. So by default you wouldn't see that version available for download. You can submit a Customer Care inquiry with details which account was used to check the available version, which versions were listed, and which one is required but missing.
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