so here is the whole thing: I started playing Destiny 2 when I didn't have a phone, which makes me can't register a Gmail account for myself, so I used a E-mail account under my school's domain to register Bungie.net. Since Google changed their school account policy, they removed permissions from graduated students--which includes me--to use that account. THEN I got my phone and my number, registered a new E-mail, but already have no chance to change E-mail address that linked to Bungie.net to a new one. and it leads to the problem of unable to use in-game chats. I want to change my E-mail address for Bungie.net, while I can't login my old E-mail to confirm that(it no longer exists); or, at least, I want to find a way to enable in-game chats for trying to join some end-game content like raids and dungeons. please help.