Firmware Update Wizard Error

Within the vSphere client the Firmware update wizard is failing due to the following error:

Severity: CRITICAL
Error Code: 210013
Time (Appliance server time): Oct 20, 2015 at 12:44:00
Details: Configure the firmware update repository and make sure there is a valid catalog file present

Browsing to the location of the Dell url it would appear to me as though there is a case error in the filename (linux is case sensitive). The appliance defaults the catalog  to the following location and filename:

Dell Online (ftp.dell.com/.../Catalog.xml.gz)

The appliance cannot be changed.

How can i contact or get Dell to address this?