What the business sees when you file
It sees the complaint: the type, what happened, the dates, the amounts and whatever you attached. It does not see your name, your email address or your phone number. It replies to you inside the case, not to your inbox.
Your phone number is the one detail that never reaches the public. If you later disclose your identity the business sees your name, email and phone, but a public viewer of that same case file still sees only the name and email.
Revealing yourself is your call, and it is one-way
Some complaints need a name on them: an account to look up, a booking to find, a refund to route. You can reveal your identity at any time, and after the business has acknowledged the case it can ask you once whether you will. You can decline, and declining is final for the business’s ask, though you can still volunteer later if you change your mind.
Revealing cannot be undone. When you do, the business sees the name, email and phone on your account, and a public viewer of that case sees the name and email only.
Anonymous is not the same as untraceable, and that is deliberate
Every complaint is tied to a real account, which is why an anonymous complaint here carries weight that an anonymous form on a review site does not. A business cannot dismiss it as a fake, and a made-up grievance cannot be filed and walked away from.
A complaint found to be abusive, defamatory or fabricated can be suppressed by an administrator, which removes it from public view for good. Anonymity protects you from retaliation; it is not cover for making things up.
When an anonymous complaint becomes a public complaint
Your complaint is private when you file it. It becomes public if the business does not acknowledge it within five days, or if it acknowledges it and then fails to resolve it within ten days of doing so. Acknowledge and close it properly and it stays private permanently.
Going public means the case file appears in the public feed and on the business’s profile. If you never revealed your identity, it publishes without your name.