I have another query. I already have a membership system on my website (login/sign up system) through another plugin. I have put this subscription page in such a way that only members can see it. However, when members go to this page where I have put the subscribe form, they once again have to provide their name and email ID although being member, their email ID and name is already there in the system. How can I design the system in such a way that when the subscription form is opened by a member, it automatically reads values of name and email ID from their member profile, and all they have to do is click on Submit?