I need help because:
Using the device you installed Penbook on, tap the following link:
https://apple.co/2Th4vqI (open it on the device with Penbook)
This will show you a list of your App Store subscriptions. You can cancel Penbook from here.
(If you don't see Penbook here, that means your Apple ID does not have a Penbook subscription.)
If you disable renewal, you will be able to continue to use your subscription's features until the current period runs out.
We can't refund you directly; please contact Apple. Here are their instructions for requesting a refund:
https://support.apple.com/HT204084
If you use Penbook on two or more devices and your work isn't synchronizing, here are some things to check:
If nothing there helps, you need to make a backup of your Penbook work, as follows:
Now, please contact support through the app.
You may be able to recover some snapshots of your work by tapping 👤Account, then "Penbook backup", then "Export page snapshots". Please contact support through the app for further assistance.