What we hope to do:
We wish to set up a portal/form/app from which our customers can easily opt to return a product and create a return shipping label, without the need of our interference or approval - or minimal at least.
The apps we've looked at so far do not seem to offer the same, cheap, shipping prices, as the manual method in the Shopify Admin.
Do you know of any way/system/method/app that would provide us with the Shopify Admin prices while still automating the process?
Thanks in advance for any helpful pointers and information.
I'd recommend looking into the app called Rich Returns. The app provides a self-service return option to your customers by implementing a branded portal on your store that customers can use. Their app also connects with over 50 different shipping carriers. I recommend checking out their app demo here to see it in action.
If there is anything else I can help you with, please let me know.