Question on Provisional Email for FC Membership

[melodyofmysoul.livejournal.com]

Hello again! I've gotten approval from mynamelessname to create a new post regarding fan club (FC) membership, as this covers a different topic from the previous post.

I visited the English version of Johnny's Net, and the webpage containing instructions on joining the FC mentions something about sending a blank email for provisional registration until such time that the applicant is able to pay for the membership. It seems that one can choose to pay using Pay-easy, or using the traditional bank transfer method via the post office. (The instructions for the traditional bank transfer are in the Japanese FC site.) However, the provisional registration email is something new to me so I'm now a bit confused.

I hope someone can answer the following:

1. Is the provisional registration email now a necessary step in applying for membership, regardless of how one chooses to pay the necessary fees? Or is it only for those who want to pay using Pay-easy?
2. If the registration email is necessary, does it have to be sent using an email address that isn't GMail, Yahoo, or other free emails?

Any other feedback on this process is really appreciated. Thank you!