I'm pretty sure they won't be able to do much if the 2FA was lost. I thought I remember reading something in their FAQ about that but I just checked and didn't see anything. They did mention that you are not able to change your phone or email address though:
For security reasons, we don't allow changing phone or email information, as that would allow an adversary to change contact info and then steal funds without the proper owner receiving notifications.
If you need to change your contact info, you can create a new wallet, and then transfer funds over to it.