Why Crypto Swaps Get Frozen, and How to Avoid It

You used a swap service that advertised no registration and no KYC. You sent your coins. Then the status page stopped moving, and an email arrived asking for a passport photo and proof of where the funds came from. This is the most common way people lose access to money in the no-KYC world, and it follows a predictable pattern.

The mechanism

A swap site needs a supply of the coin you want. A few hold their own reserves. Most do not: they forward your deposit to a large exchange or liquidity provider, trade there, and send you the result. The swap site is a storefront.

The upstream exchange is regulated and screens every incoming deposit with blockchain-analytics software. The software assigns your coins a risk score based on their history. If the score crosses a threshold, the upstream exchange freezes the deposit and tells the swap site it needs customer documents.

The swap site now has two choices: absorb the loss, or pass the request on to you. Its terms almost always allow the second.

Why small tests do not reveal it

Screening thresholds scale with amount. A $50 test swap passes; a $20,000 swap from the same wallet does not. This is why a service can have hundreds of five-star reviews and still hold large swaps: the reviews describe the small ones.

Signals that predict a hold

Look for these on a listing before you send:

• Third-party liquidity. The service routes through upstream exchanges. This is the main risk factor.
• AML screening in the terms. Wording such as “risk scoring”, “blockchain analytics” or “we may request verification”.
• KYC level 3. On this site that means the terms allow a hold and an ID demand after a risk flag.
• No refund-without-ID clause. The best terms commit to returning a stopped deposit to the sending address without documents.
• Past incidents. The incident registry records held-funds cases with amounts and outcomes. Filter it by “Funds held”.

The swap services page ranks by Safety grade, which already weighs all of these.

How to lower the risk

1. Prefer own-liquidity services and those with a refund-without-ID commitment.
2. Keep each swap small. Split a large amount across several swaps and several days.
3. Use fixed-rate, direct pairs where you can; fewer hops means fewer screening points.
4. Read the aggregator’s guarantee. Most guarantees exclude any hold the provider’s own terms permit, which is exactly this case.
5. For large amounts, use P2P. On a non-custodial P2P exchange there is no upstream exchange to freeze anything.

If your swap is already stuck

• Save everything now: the order ID, the deposit transaction hash, the status page, every email.
• Ask in writing for a refund to the sending address. Quote the refund clause in the terms if there is one.
• Ask which party is holding the funds. Often it is the upstream provider, and the swap site can only relay.
• Decide deliberately about documents. Sending ID to a company you did not choose is a real privacy cost, and in documented cases it has been the only way funds were released. It is your decision; nobody else can make it for you.
• Report it. A documented report with the transaction reference goes into the registry, where the next person will see it before they send.

What this site does about it

Held-funds cases are recorded per service with the amount, days held and outcome. A serious unresolved case caps the service’s Safety grade until it is resolved, whatever its Privacy grade says. A service that asks nothing about you and keeps your money is not a good service.