Hello Misa,
Thank you for your question about switching eBay ID's. The payment is tied to a specific Userid, but you can cancel your subscription with the current account today, and then use it until November 29.
You can also sign up for the other account right now for free, at which point you can subscribe with that ID on November 30 if you like.
Please reply if you have any other questions, or require other assistance. We are happy to help.
bidslammer