The linked purchase page clearly states that only Kendo UI Web is included in the Premium collection.
.NET UI CONTROLS
ASP .NET AJAX, ASP .NET MVC,
WPF, Silverlight, WinForms,
Kendo UI Web
Reporting, OpenAccess ORM
VISUAL STUDIO PRODUCTIVITY TOOLS
There was a limited time offer which included Kendo UI DataViz with Kendo UI Web. This offer ended on March 22nd.
However, you may contact our sales team at email@example.com to request some discount for individual Kendo UI DataViz purchase.
the Telerik team
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI