Bybit Account Blocked
(Error 31003): Step-by-Step Complaint Guide

Error 31003 on Bybit is one of the most stressful situations a crypto user can face. You log in, your balance is visible, but every action is blocked. You cannot trade, you cannot withdraw, and Bybit's chat support often gives generic responses that do not explain what triggered the block. This guide cuts through that and tells you exactly what to do.

What Does Bybit Error 31003 Mean?

Bybit error 31003 means your account has been suspended by the exchange's compliance or security system. The block is not a technical glitch. It is a deliberate action triggered by one of Bybit's automated risk controls. Your funds remain in your account and are not confiscated — the block prevents access, not ownership.

The error most commonly appears when: Bybit's AML engine (powered by Chainalysis) has flagged one of your incoming transactions for contact with a sanctioned or high-risk address, your KYC verification is incomplete or expired, or Bybit has received a complaint or a law enforcement request relating to your account. In rare cases it also appears after a failed 2FA setup or suspicious login activity from a new device or country.

Why Bybit Blocks Accounts: Four Main Triggers

Understanding the trigger matters because the solution depends entirely on the cause. The four most common triggers are different problems with different document requirements.

AML flag: Your account received funds that Bybit's transaction monitoring identified as having passed through a mixer, a sanctioned address (OFAC, UN list), or a darknet market. This is the most serious trigger and requires a compliance package rather than simple ID verification. KYC gap: Your identity verification is missing, outdated, or the documents submitted were rejected. This is the simplest case to resolve. Withdrawal pattern: Rapid or unusually large withdrawals triggered Bybit's fraud prevention rules. Bybit may ask for an explanation before reinstating withdrawal access. External request: A law enforcement agency or another exchange submitted a request to Bybit's compliance team citing your account. In this case, Bybit will not always communicate the reason clearly.

What to Do in the First 48 Hours

The first thing to do is contact Bybit support and request the specific reason for the block in writing. Use the in-app support chat or email support@bybit.com with your account email in the subject line. Ask explicitly: "Please confirm in writing the reason for the account restriction and the reference number for my case." Most users skip this step and try to guess the reason, which wastes time and can make the situation worse.

Do not attempt to log in from multiple devices or IP addresses while the block is active. This can trigger additional security flags. Do not transfer funds using another account — Bybit monitors related accounts and this can escalate a temporary block into a permanent closure. Do not accept offers from "recovery services" that appear in forums or Telegram — these are scams targeting blocked account holders.

How to File a Complaint with Bybit: Step by Step

A complaint that gets reviewed is not the same as a complaint that just gets submitted. Bybit's compliance team processes hundreds of appeals per day. The ones that move forward quickly are specific, well-documented, and calm in tone. Here is the structure that works.

Step one: submit your initial appeal through Bybit's account restriction appeal form (accessible from the account block notification or via support). In the description field, state your account email, the date of the block, and one factual sentence about your use of the account. Do not speculate about the reason — wait for Bybit's written response first. Step two: after receiving Bybit's response identifying the specific issue, prepare your document package accordingly. Step three: resubmit through the same ticket with your documents attached, with a clear cover letter referencing your case number. Step four: if you receive no response within 10 business days, escalate by emailing compliance@bybit.com directly, attaching your case number and a summary of the timeline.

What Documents Does Bybit Require?

For a standard KYC block, Bybit requires a government-issued photo ID (passport preferred), a selfie holding the ID with a handwritten note showing the current date and "For Bybit verification", and a proof of address document under 90 days old (a bank statement, utility bill, or government letter with your name and address clearly visible).

For a Source of Funds request, you also need documentation proving where the crypto came from. This can include a bank transfer receipt showing fiat-to-crypto purchases, receipts from crypto exchanges where you originally bought the funds, a salary certificate or employment contract if funds came from employment income, or sale documentation if funds came from selling an asset. The stronger and more specific your source evidence, the faster Bybit moves.

For an AML-triggered block involving contact with a flagged address, you need a professional compliance package. This includes an independent blockchain tracing report showing that any contact with a high-risk address was indirect and unintentional, a declaration of non-intent, and in serious cases a supporting letter from a qualified legal professional. This is the scenario where professional help has the highest impact on the outcome.

How Long Does Bybit Take to Respond?

For standard KYC appeals with complete documentation, Bybit typically responds within 3 to 10 business days. For Source of Funds reviews, expect 15 to 30 business days. AML-related cases with a professional compliance package take 20 to 45 business days. If a law enforcement agency is involved, the timeline is outside Bybit's control entirely and can stretch to several months.

These timelines assume your first submission is complete and accurate. Incomplete submissions restart the clock. Each time Bybit requests an additional document and you respond, the review period begins again from that point. This is why submitting a complete, well-prepared package on the first attempt matters significantly.

When to Involve a Professional Compliance Team

Self-handling a Bybit appeal works well for KYC-only blocks where your documents are straightforward and complete. If the block involves an AML flag, a Source of Funds request for an amount over $5,000, or any indication of a law enforcement request, professional compliance assistance materially improves the outcome. At KarCrypto, we use Chainalysis Reactor and TRM Labs to produce independent tracing reports that Bybit's compliance team accepts as credible third-party evidence. We also correspond directly with Bybit in the language and format that their compliance process expects — which is different from how a regular user writes to support.

"The difference between a resolved case and a prolonged block is usually the quality of the first compliance submission, not the second or third."