Is it too late to join your lawsuit or is there an option to file class action? 

It feels like legal action is needed just seeing how many small businesses are truly suffering because of this exact issue that Quickbooks is *clearly* aware is causing irreparable harm to their clients in many cases. It's unconscionable. 

Here it is over a year after your OP and we're dealing with the same issue. We have deposits on hold from over three weeks ago and never received any notice that this was an issue even though when you try to look into it the alert on your account tells you to check your email.

Please update us on your legal proceedings.