If you click that it asks you what product. If you select a product that was returned you can't do anything further.

I had a refund where the seller shorted me on the shipping and the refund ended up costing me money. I had no way to contact Amazon.. I would hope for the best customer service they could provide a chat button where I could address an issue like this.

Others sites have a floating chatbox ready to assist you on your purchase. The best customer service should include something similiar, I am right?