I currently have a Premium account, but I want to upgrade to a Premium+ account. Will I have to pay the full amount for the upgrade or will it be a reduced amount since I am already a Premium member? Will the unused cost towards my Premium account be forwarded toward the Premium+ account? I still have about 9-10 months left before I would need to renew my Premium subscription.
The more details I can get about this process, the sooner I will make the decision to upgrade.
Thank you for any information you can provide.