Customers can contact customer service by phone, email or chat, as stated by Amazon. To contact customer service from the U.S. or Canada directly call 1-866-216-1072, as of 2015.
Amazon has an online automated system set up to make contacting customer service about potential problems easier, as stated by Amazon. Visit the help page and go to the bottom to hover over "Need More Help?" Click on "Contact Us" and fill in the form on the next page. At the bottom of the form, there is also the option of being contacted by customer service via phone, drafting an email to send or opening up a chat window to talk with someone from customer service.