Where a user guide is available you’ll find it on the product page at the top underneath the short description allowing you to download prior to purchase.
The videos for each product can be found at the top of the page on the right hand side.
We also share all of our videos to our Youtube Channel – https://www.youtube.com/IsotonikStudios
For support as an existing customer please use the Support Request section within your account page, this will enable us to validate your purchase automatically and assign the request to the relevant developer to respond when they're available.