Hello,
I can't seem to be able to resolve this issue of a plan no longer being available for a user after they "upgraded to other" 
In my setup I have 3 plans: monthly, semiannual and annual. They are all "registered" but they pay accordingly, i.e. monthly, semiannually or annually. Some users upgrade from monthly to annual, and then want to go back to monthly after they've "upgraded".
The problem is that, even after expiration of all plans, the monthly plan is still not available. 
All 3 plans are exclusive and are set as "No: It will be possible to upgrade to this plan (for free with pro-rating) if all conditions below and elsewhere are met".
As Kyle described in this thread: www.joomlapolis.com/forum/developer-members-support/244079-subscribe-to-one-plan-unsubscribe-from-another-plan#325490
The proration is working fine, and they don't mind waiting for the upgraded subscription to expire before going back to the monthly subscription, but the issue is that it does not show at all, even after all plans are well expired. 
Right now, if someone wants to go back to the monthly subscription, I have to go to the old subscription and switch it from "Upgraded to other" to "expired" and then they can sign up again. 
Is there anything that I'm missing? 
Thank you,
Tomás 

Hi Kyle,
Yes, those are the settings I have on all 3 plans, but it still won't allow to re-subscribe to the original plan. 

I was not aware of the CB Options. I will definitively look into it. I have several hundred subscribers, so I would have to create the new plan and then not allow new subscriptions to the old 3 so that users will slowly migrate to the the new options plan? Or could I add the options to the existing plans?  
Thanks
Tomás

Hi Kyle,
I have no limitations on the monthly (original) plan, which fails to show as an option to downgrade and all plans are publicly available.

The year and semiannual plans have the restriction that a previous plan (monthly, semi or annual) must be in state Active, Expired, Unsubscribed or Updated to other. The reason for this is to have new members sign up for the monthly plan first, and only after they've been approved and have been members they can pay to an annual or semi annual plan. 

I will test the CBSubs Options and my goal would be to have one plan with the different options, probably the monthly plan as it's the most popular plan, and then phase out the other two, though if it's not displaying for upgraded ones it can be a problem. 

What would be the best way to "phase out" those plans, meaning allowing them to continue as they are, on recurring payments, but no longer showing as an option to renew, so any renewal would be forced to the Options plan? 
Thanks,
Tomás