Response is promo is will be ready "in the coming days".

Which wouldnt be an issue if the limit was a voluntary max and we were charged our actual usage.

Yeah, it wouldn't. Wish this was the case. Also, I sent a support ticket in 3 days ago or so, and they said the Twitter promo would be ready "in the coming days".

You can barely play on the twitter promo (same boat here). The minimum CPU limit is 20, and you get 600 from the promo (31 month days = RIP). I'm submitting a ticket asking for an ETA on the promo.