Sign in,
Next to your name, click the drop down menu, and click "orders",
Go to the item you wish to return,
And when you are there, scroll to the blue bar that says. Contact support,
Then click on "Returns and Refunds, " click "request a refund",
Then there is a large list to choose from.
I picked, I ordered a different size", and then they made me post a picture. I took a picture, with a measuring tape over the product to prove ot was way too small.
After this you submit it, BUT REMEMBER to keep the page you did this on, because their response will be there. They do not write to your email address. They answer you there.
If you have to send something back, and it is under 16 oz send it first class. They refunded me without having to return it.
And if all else fails they can be reported to
https://www.ic3.gov/default.aspx
Good luck