I am using paid for membership plugin and buddypress.

I am using paid for membership plugin and buddypress. I don't think the renewal button is working? Where should it be appearing? There is an option that says "If you are using single payment gateways, then you should set the number of days before expiry that the renewal form is displayed on the Account page." I have it set for 31 days, but when I go look at "my account" and on the sign up page (using my testing account) I cant find a renew button anywhere!