Diamonique is a QVC exclusive line. QVC owns it.
They decide who will present it. They decided that Nancy would be the Host in this case.
It is strange that posters said that some other hosts, who actually are QVC active employees on their payroll are not designers and shouldn't be putting their names to " their line" of products.
Kathy is an ex-employee who also is not a designer, but somehow it is suggested that she gets special treatment and should be able to present " her line" without a host.
You can't make up this stuff.