We currently use S2Member (free) and love it. We have about 1,000 club members that pay dues and we maintain their information in an Excel file. These members should be allowed to access any part of our protected site. We would like to upload their information to our website and if a member registers on the site, and their email/cell matches a record, their account is automatically approved and set to Level 2. Right now, we have to do this manually by checking each new registration to our Excel file. Is this possible with this product or another?