At cysterwigs.com we've tried to make it easy for our Cysters to initiate a return by making it automated directly on our website.
We have also offered some nifty step by step instructions in case one needs a little help (check it out HERE)
We've noticed with some folks are still having difficulty completing the process and have gotten stuck on a specific page.
We've discovered that this issue most often this is resolved when you click the Refund (original purchase tender) or Credit (store credit) toward the top of the page; as that portion is often overlooked in the process.
Then they can click the green Add icon at the bottom!
I've posted an example below and highlighted the portion of which I'm referring:
If you have any further questions feel free to contact our Client Care Help Desk by phone or email at firstname.lastname@example.org -- 1.888.992.9447