Membership 2 upgrade disaster, wpmudev you've abandoned me.

M2 will not allow the import of previous installation. This means I cannot set protected content therefore my whole site is 100% open to visitors.

On Friday I was promised an upgrade with a patch within 2 hours:

I'm still waiting.

Several further requests for help on here have been ignored.

I appreciate that these forums are not run by the developers but someone needs to take responsibility for what is basic customer service.

I am feeling utterly abandoned here.

Is there anybody out there who can help?