I'm using the latest version of WordPress, s2member and s2member Pro.
I'm trying to offer membership (for the same membership level) with two options of payment:
Monthly billing for $10/month
Full upfront payment for one year (with the thirteenth month free) @ $100
The monthly billing is pretty straight forward. With the upfront annual billing, I'm running into issues. s2member pro's paypal pro forms don't seem to support going over 12 months while only charging the user once. The closest I came is to set the trial amount to a non-recurring fee of $99.99 for 1 year and set the regular amount to a non-recurring fee of $0.01 for one month access. The problem with this is that it may confuse the customer when they aren't billed exactly $100 as they were told. (Of course, this isn't a huge deal for them .) The other problem is that they will be billed twice, which is a bit confusing for the customer and more complex for bookkeeping. Since paypal charges the paypal pro account per transaction, having two transactions instead of one is also not ideal.
Thank you for any suggestions you might have!