Office 365 is pretty close to that, actually. You need Premier support to get anything useful.
My favorite O365 support story is where first level support dicked around so long with a missing mailbox that by the time they escalated the ticket, their backup had been overwritten. Luckily it was a user’s archive mailbox and we still had their source PSTs, so not a lot was lost.
> Office 365 is pretty close to that, actually. You need Premier support to get anything useful.
I haven't had too much experience with their service support, but their app support seemed decent. I was having an issue with S/MIME signatures not being parsed properly on Outlook iOS. Support chat seemed competent and knew what was happening (no support for S/MIME signatures yet).
My favorite O365 support story is where first level support dicked around so long with a missing mailbox that by the time they escalated the ticket, their backup had been overwritten. Luckily it was a user’s archive mailbox and we still had their source PSTs, so not a lot was lost.