Limiting who can pay for a subscription?

[Taipa]

Is it possible to limit who can pay for a subscription?

I co-run a business group forum, where all the features/forums require a paid membership. We would like to be able to moderate/screen potential new paid members to ensure they meet the requirements before they pay.

However, we also require that anyone can register an account, to post in the pre-sales forum. We just want to moderate who is able to access the paid subscription option, so that people cannot pay if they do not meet the requirements (so we don't have to deal with refunding members who do not fit).

Is there a way to do this? Preferably an automated way, rather than making interested members have to PM an admin/mod to notify that they are interested in paying.
Thank you!