Support responded:
We did have a few issues yesterday regarding notifications, but they have been solved about 18 hours ago.
I am not sure if these issues existed before yesterday, but they could have.It was fixed just before this post so that makes sense since this user says they just got a notification.
Not getting notifications? - #11 by meerkatlyndzThe only complaint after that time is this one and it sounds like it’s something else, not notification related.
Not getting notifications? - #17 by akmorphsOur apologies for the inconvenience.