Edit: more websites that are working:
https://kingschatforum.com/d/25969-kindle-won-t-connect-to-wifi-1844-375-4111-amazon-customer-service-number
https://kolab.org/hub/topic/1236/books-not-showing-up-on-kindle-1844-375-4111
website: [onlinetroubleshoot.com](not working)
phone number: Phone Number 1844(375)4111 (called and is working)
https://twitter.com/OnlineTechSupp5
https://mobile.twitter.com/OnlineTechSupp5?p=s