Contact Awazon Market
There is no email address and no phone number for Awazon Market, and a site that promises both is probably a copy. The real channels are the in market ticket system and the operator thread on the Dread forum. Here is how each one works and what to expect from them.
The in market ticket system
Once you are logged in, the ticket system is the first place to raise an issue that is specific to your account or an order. A missing deposit, a question about a withdrawal, a listing that will not load. Open a ticket from the account area, describe the problem, and include the details that save time. The coin involved, the approximate time, the transaction reference if you have one, and the exact error text if the storefront showed one. Tickets are answered in the order they arrive, and response times depend on the current volume, so a precise first message is faster than a vague one that needs a follow up.
The Dread thread
For anything that is not about your specific account, the operator thread on the Dread forum is the channel. This is where mirror rotations are announced, where the operator responds to questions that affect all users, and where you go if a ticket does not resolve it. Posts here are public, so do not include your passphrase or your full seed in a public thread. Include the address, the date, and the error, and keep the sensitive material out of the clear. The thread is also where you verify a rotation against the signed post before you trust a new address.
Writing a useful report
Three things make a report useful and fast. The full onion address you were using, because a report without an address forces a back and forth. The date and approximate time, because the operator can check logs against a specific window. And the exact error text, copied, not paraphrased, because a paraphrase loses the detail that identifies the problem. A report with those three elements usually gets a real answer on the first pass. A report without them starts a conversation that could have been an answer.