I’m tying to show the previous orders and bookings and struggling to show this.
Can anyone help… please x 10 
You would be better suited going through Wix Support if you just wish to see your Wix Bookings orders etc.
https://support.wix.com/en/article/contacting-wix-customer-care-for-support
You can read about it too in the Wix Bookings own support pages.
For site members themselves.
https://support.wix.com/en/article/about-the-my-bookings-page
For the Admin/Owner of the website.
https://support.wix.com/en/article/viewing-a-customers-payment-history-in-wix-bookings
If you are trying to do it through the use of code route, then you can’t currently do this with the Wix Bookings API.
https://www.wix.com/corvid/reference/wix-bookings.html
This might be something that they offer if they release a Wix Bookings Backend API as well.