Can anyone recommend a suitable membership plugin which will:
1/ take paid membership eg Paypal
2/ deduct credit from their prepaid membership every time the member submits a form within their membership area.
3/ once all their credit is used to prompt them to buy more credit.
4/ preferably a free plugin
I know there are many membership plugins available but I can't find one that does the above.
Just to be clear its not a timed membership/subscription but credit based subscription plugin I'm looking for.