As of August 2015, Adobe no longer offers the month-to-month subscription plan for Adobe Presenter.

After your monthly subscription expires, you can buy the Annual Subscription Plan for Adobe Presenter from Adobe.com.

If you have any questions or concerns, reach out to Adobe Customer Support via email at elssup@adobe.com or via phone at 1800 833 6687 (IVR Option 2 > 2 > 3 > 6 > 3).