Sorry for our late reply. We must have missed this last week (PM team was delivering training and were kept rather busy
Let's start with the first: Our forums are not support but we try to help here as much as possible, and also answer configuration questions and those kind of things.
Second: Just looked at your problem and I can't say if this is a supported scenario or not. I am a but surprised that you cannot exclude the EFI partitions though.
Third: Yes, free version comes with support and that is the part where it is best effort. You can use the control panel in the UI and create a support case. Note that if it is the first time you will need to register your email (to avoid bots) and after a while you should get an email, click on the link in that email and then about 15 minutes later or so you can create the support call. (This will only be needed once)
If you have done this, please log the support case ID here and the follow-up/ outcome with support after that. This is also handy for the community to know what is going on and whether this is a supported scenario (or maybe even a future supported scenario) or not.
Again, sorry for missing the thread