Case File // CAC-2026-045 // Operator: 305Markets
The Exchange That Took Deposits and Returned Error Codes: Unwinding AUD 96,800 at 305Markets
A freelance designer in Melbourne deposited into 305Markets, a polished exchange recommended by a “trading friend” who turned out to be another victim. Her balance grew on screen for seven weeks. Every withdrawal returned the same error: pay a release fee first.
The Entry Point
305Markets looked the part: clean UI, low advertised fees, live charts, a referral from someone she trusted. She funded the account with a mix of card payments and USDT on the Tron network, traded actively, and watched her balance climb.
When she tried to withdraw, the request returned a “risk verification” error demanding a 20% tax payment to release funds. She paid it. The next withdrawal demanded another fee.
Where It Broke
There was no liquidity behind the balance. The on-screen number was a database entry; the “tax” was an advance-fee designed to extract more money against funds that were never withdrawable.
The case split into two distinct money trails, and that split is what made partial recovery possible.
Every withdrawal came back as an error code asking for one more payment. The balance on screen was just a number in their database.
The Trace
- Separated the two rails
Card payments and on-chain USDT-TRC20 follow entirely different recovery paths. We built one evidence trail for each.
- Opened the card-rail chargebacks
Several card deposits were still inside the chargeback window. We assembled an issuer-ready evidence pack documenting the misrepresentation.
- Clustered the TRC20 deposits
The 305Markets deposit addresses funneled into a consolidation wallet that fed a known high-risk exchange.
- Froze the on-chain portion
We filed a documented trace to the receiving exchange, which restrained the identifiable balance.
- Reconciled what could not be recovered
The “tax” payments she sent to a personal wallet were unrecoverable, and we accounted for them honestly in the final tally.
Outcome
AUD 61,952 was returned through a combination of card chargebacks and the frozen TRC20 balance. The advance-fee “tax” payments to a personal wallet were gone. Splitting the trails early — rather than treating it as one loss — is what made the larger half recoverable.
Red Flags in the Code
- Withdrawals require an upfront “tax,” “fee,” or “verification deposit.” Real exchanges deduct fees from the withdrawal.
- Your balance is visible only inside the platform.
- The company is not licensed by the relevant regulator (here, ASIC).
- Deposit addresses change on every transaction.
- Escalating pressure to deposit more to “unlock” what you already hold.
Recognise this pattern?
If your loss looks like this one, send us the transactions and the platform. We’ll tell you honestly whether the chain still holds a trail worth following.
Request a Forensic Review