Sally, we've been sending emails for the past few weeks.
I would recommend making sure that if you're the company Admin, that you are reflected as Admin with your account manager.
Those emails may be going to someone else in the company and either is ignoring them or, maybe, no longer works for you.
I haven't looked into your account directly, but that may be the case.

Huh, that's interesting because I also don't see anything resembling an alert to what is a CRITICAL issue in any of the emails I've previously received from RC and I am the only one who receives them. This is a monumental mess that is causing untold headaches, in this day and age almost all of my clients prefer to communicate via text and mine are STILL NOT SENDING to most if not all. Perhaps your "notices" are buried in the never-ending ones telling me I'm over my limit (another recent fun RC experience that came with no advance warning), or in some other communication. Even if you did send something within "the past few weeks" that hardly seems like sufficient time to address a critical application process without which we lose SMS. Seems like you dropped the ball here and are blaming the customer.

Are you (RingCentral) going to fix the current SMS issue in the immediate future and fix the issue with potentially losing business SMS if the application submitted today isn't processed by the 3/31 deadline? If the answer to either of those is "no", "I don't know", or some variation on "we're working on it" it doesn't seem like RC can be of much assistance at this point and I am left wondering if the (12, 13, 14 years (?) (I lose track because it's been so long)) of being a customer was ultimately a mistake because the harm that this has already caused, and absolutely will cause if I lose SMS for an extended period, is substantial to put it mildly.