Enchance Functionally of Wix & Shopify Websites

I have only basic Wix experience .

I need to enhance wix website so clients can submit their artwork and text to me with a online page for this project

I also need to enhance FAQ page with title boxes that expand to answers

I also need to tweak up

I also need to chat as to whether my basic shopify account for payments can we merged into advertising website

https://www.visitnorfolkisland.app/ ( Potentially I will tweak )

www.visitnorfolkisland.app/advertising ( you will tweak )

https://visitnorfolkisland.shop/ ( you will tweak )