How do I uninstall Upselly from my store?
First check if you have enabled Quick Load. If enabled, it means our script was added to your theme.liquid file for faster loading.
In order to do clean uninstall first disable Quick Load. Doing so will remove our script from your theme.
After this step go to Apps listings in your store admin and click on the trash icon next to Upselly app.
Confirm uninstallation and that's it.