Hi,
Thanks for getting back to me with more information.
I'm sorry for the finally question.
If I want to upgrade the plan to your bundle can I just pay the difference within the first thirty days or so?
If you want to upgrade from Droppics to Joomla Bundle, the system will be deducted automatically.
Please drop us a billing ticket if you encounter any issues about the payment or upgrade the package.
Do you have a demo for the admin?
I'm sorry we don't have any trial/limited version as our plugin are open source.
But, if you encounter any trouble of compatibility, the developer in charge can fix that for you or we can refund you.
Hope it helps!
Cheers,