Help needed with CB subs plans!

Hi I am going slowly crazy with this thing...

I dont seem to be able to get it right.

I have a plan called EMPLOYER that promotes to employer Joomla group. I want normal users to be able to subscribe to it when they go onto it via a link, I want the business users to be able to subscribe to it via the same link AND I also want those who have not got a subscription to be allowed to subscribe to it.

How do I do it? I sat a couple of hours in front of my computer swearing at it so hard that the neighbour kids were crying...

I either get a "Chosen plans combination is not allowed (you must choose coherent plans selection, e.g. mandatory subscription(s) must be active or mandatory plan(s) must be chosen).
Please press back button and select the subscription plan to which you would like to upgrade." or an empty field, or it simply does not promote the user into the group (I got the promotion to work on the latest nightly (took me a while to remember that Nant had posted about bringing out a new nightly) but then my computer gave the messages above).

You're linking to a plan that depends on another plan. If it's a child of a parent plan you can not possibly subscribe to the child without the parent. This means your URL must include both their IDs. This is done as follows.

&plans=PARENT_ID-CHILD_ID

If there is no parent/child plan relationship then the plan isn't accessible due to other things like access or conditions.