Hello, I've about 150 thin client Dell Wyse 3020 

I'm trying to get help on this device and download a new firmware that the call center told me I've to install

The Wyse support told me I've to register on the Wyse self-service portal: I've create a login but when I went to register the serial number, it told me the serial number is a DELL product and not Wyse

If I went to the DELL portal the service tag told me that there isn't any software or firmware to download

How can I get some support with this "hybrid" DELL - WYSE devices?