Backup service, annual payment?

Since the backup beta is ending and now I have to pay (which was expected of course) and since I'm now billed annually for the 10% discount…

*) Is there a way to get billed annual for the backup program? I tried to enroll and monthly was my only option.

*) If so, do I get a 10% discount for pre-payment?

*) If so, can I ask via a support ticket to co-terminate the charge with my linode's charge (understanding that the partial year prob won't get the discount)

Thanks!