Free support is strictly limited for the advanced custom receipt / invoice templates area. The opportunity you have is to fine tune the layout of your dockets, but substantial effort is requried, and it's not for the light hearted.
Essentially you need to craft all the dynamic elements if you want a custom template.
If you make a mistake and want to revert to the original defaul tempate, just delete your custom template and save it blank.
You can view how your custom notification looks by viewing an ORDER in the shopping area, then choosing PRINT/EMAIL docs from the popup windows sidebar. There is an option to view each notification.
Custom notification example
Insert the tag between square brackets  e.g. [b_cust_name] to have the relevant member record or order element pulled into the email.
Shopping - Delivery Detail Fields
Ecommerce / Order Related Fields
Ship Date: [b_shippedon] or [shippedon]
Tracking Number: [b_courier_ref]
Tracking URL: [b_courier_url]
Shipping/Tracking Notes: [b_courier_notes]
Account ID: [mbr_reference]
Member Notes: [mbr_notes]
To have full price details in your docket template:
Product review email notification - order details with review stars: