I initially signed up for Xbox Live using my Gmail account as Windows Live ID (WLID). Now I have a new WLID which I use for accessing Hotmail and other Windows Services. I have been trying to switch my WLID from my original Gmail-associated WLID to my new Hotmail-associated WLID. But I get an error when I attempt to do so.
I got in touch with a representative through chat, and we went through several procedures. After unsuccessfully attempting to switch, he had me remove the gamertag on my new Hotmail-associated WLID (which was some dummy gamertag) and attempt the switch again. Unfortunately, no dice.
He then said to wait 48 hours and attempt again. No luck.