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The return procedure of Amazon is very fast and convenient.
Please click this link to go to the return items page: https://www.amazon.com/gp/orc/returns/homepage.html/ref=orc_surl_ret_hp?fg=1
Then click on "Return items" button and follow the onscreen instructions.
I am sorry to say the above link has expired.
Please try this link: https://www.amazon.com/returns