After canceling your subscription, you can easily subscribe to a new one by logging into your account from the Weenect app or the personal space on my.weenect.com.
Once you've logged into your account on the Weenect app or my.weenect.com, you can manage your subscription by clicking on "subscription" and then "manage subscription." From there, you can select the subscription plan that you want to subscribe to.
Here's an example:
