Nils Silinevics
Partner · AML & Crypto Compliance · Former FIU Investigator
You've found that spot trading is blocked while withdrawals still work on CEX.IO. CEX.IO, headquartered in United Kingdom (registered with FCA), is regulated by UK Financial Conduct Authority (FCA) under UK Money Laundering, Terrorist Financing and Transfer of Funds Regulations 2017. The exchange uses Chainalysis for blockchain analytics and Onfido for identity verification. CEX.IO is one of the few exchanges FCA-registered as a crypto-asset business in the UK. This means they're subject to UK MLR 2017 — one of the strictest AML regimes — but also means they follow due process more rigorously than offshore exchanges. CEX.IO freezes accounts under UK Money Laundering Regulations when their compliance team detects sanctions matches, high-risk deposits, or unusual withdrawal patterns. You discover that you can no longer trade certain pairs, your orders are cancelled, or a token you hold has been delisted for your region. Your funds may still be accessible for withdrawal, but trading is limited or blocked entirely.
CEX.IO freezes accounts under UK Money Laundering Regulations when their compliance team detects sanctions matches, high-risk deposits, or unusual withdrawal patterns. CEX.IO is one of the few exchanges FCA-registered as a crypto-asset business in the UK. This means they're subject to UK MLR 2017 — one of the strictest AML regimes — but also means they follow due process more rigorously than offshore exchanges. This background matters because it shapes how CEX.IO handles compliance — and how we approach resolving your case.
The compliance framework: CEX.IO operates under UK Money Laundering, Terrorist Financing and Transfer of Funds Regulations 2017, overseen by UK Financial Conduct Authority (FCA). Their compliance infrastructure uses Chainalysis for blockchain analytics and Onfido for identity verification. CEX.IO is known for fiat onboarding and card purchases for beginners, serving entry-level crypto users in Europe and UK — and their compliance team is calibrated to flag deviations from typical user behavior in that segment.
What triggers trading restricted on CEX.IO:
Real case — FCA regulation: A UK-based user had €30,000 frozen on CEX.IO after making a large withdrawal to a new bank account. CEX.IO's compliance team requested source of funds documentation but the user's funds originated from crypto mining 5 years ago — he no longer had the mining records. We reconstructed the mining history from blockchain evidence (pool payouts, hardware purchase receipts) and CEX.IO released the funds within 8 days.
What CEX.IO requires to resolve this: Depending on the trigger, CEX.IO may ask for government-issued photo ID (verified through Onfido), proof of address (utility bill or bank statement within 3 months), account suspensions (exchange statements, bank records, payslips, tax returns, or business documents), detailed transaction explanations with on-chain evidence, and in some cases a video verification interview. The challenge: CEX.IO rarely tells you which specific trigger caused the trading restricted, so you're guessing at what documentation to provide — and each rejected submission makes the next one harder.
Our approach is specific to CEX.IO: CEX.IO's FCA registration means they follow UK regulatory procedures — including the right to appeal compliance decisions. We use the FCA's complaints framework to escalate unreasonable freezes. CEX.IO is more responsive to legal pressure than offshore exchanges because their FCA registration is commercially critical and they can't afford regulatory complaints.
Trading Restricted on CEX.IO — our strategy: We determine whether the restriction is compliance-based (AML risk), regulatory (jurisdiction-specific), or technical (platform-side issue) and take the appropriate action — either resolving the compliance concern or facilitating an orderly withdrawal of restricted assets.
The submission that matters: Instead of submitting through CEX.IO's standard support channels (where you'll get automated responses or generic template replies), we prepare a professional legal submission — a structured compliance package with a cover letter from a Swiss law firm citing UK Financial Conduct Authority (FCA) obligations and UK Money Laundering, Terrorist Financing and Transfer of Funds Regulations 2017. CEX.IO's compliance team processes legal submissions differently from regular user tickets — they're assigned to senior compliance officers, not support agents, and they bypass the automated response loop that delays most cases by weeks.
Was this triggered by a hack or scam? If your CEX.IO account was frozen after unauthorized access, a phishing attack, or a SIM swap, the freeze may be a secondary consequence. Our crypto fraud recovery practice can trace stolen assets through on-chain analysis while we simultaneously work to unfreeze your account — the two processes are complementary, not sequential.
When standard compliance isn't enough: Some situations fall outside the normal compliance flow — inherited crypto holdings, accounts registered under another person's name, unprovable source of funds through conventional documentation, or cross-jurisdictional complications where your residence, the exchange's jurisdiction, and the fiat banking path all differ. If that sounds like your case, our complex cases practice handles scenarios that other firms decline.
Further reading: our guide on what to do when a crypto exchange freezes your account covers the documentation and legal strategy in more depth.
We determine whether the restriction is compliance-based (AML risk score), regulatory (jurisdiction-specific rule), product-based (derivatives/margin restriction), or technical (platform-side issue). Each requires a different response.
For compliance restrictions: we prepare an AML compliance package. For regulatory restrictions: we verify your jurisdiction status. For product restrictions: we confirm eligibility. For technical: we escalate to {p_name}'s engineering team.
We submit through {p_name}'s compliance channel with a legal cover letter citing {regulator} and {aml_law}. Trading restrictions are often pre-cursors to full suspension — we act before it escalates.
Trading restrictions lifted — full trading, margin, and derivatives access restored. We advise on trading patterns that trigger restrictions on {p_name}.
FCA registration means CEX.IO follows UK MLR 2017 procedures, but it doesn't prevent them from freezing accounts they deem high-risk. What it does mean is that they must follow due process: provide reasons for the freeze, allow you to respond, and make a timely decision. If CEX.IO freezes your account without explanation or drags the review out for months, they're violating FCA expectations — and we can escalate to the FCA complaints system.
CEX.IO is FCA-registered; Binance's UK entity (Binance Markets Limited) has had a more complex regulatory journey. CEX.IO is fully compliant with UK MLR 2017 and has a dedicated UK compliance team. This means freezes are more predictable (they follow UK regulatory procedures) but also more stubborn — CEX.IO's compliance team won't unfreeze an account without proper documentation because they face FCA scrutiny.
Platforms apply graduated restrictions: first trading limits, then withdrawal blocks, then full suspension. Trading restrictions are the earliest stage — the platform reduces risk exposure while keeping your funds on-platform. Common causes: your risk score increased, your region was added to a restricted list, or a token you trade was flagged for delisting.
Yes. Platforms apply regional token restrictions based on regulatory requirements in each jurisdiction. A token available in one country may be restricted in another due to local securities laws, AML regulations, or sanctions. If a token you hold becomes restricted in your region, you may be given a window to sell or withdraw it before trading is fully disabled.
When a platform delists a token, they typically provide a withdrawal-only period (7-30 days) during which you can withdraw the token to an external wallet but cannot trade it. If you miss this window, the platform may convert the tokens to a stablecoin at the delisting price, or hold them in a frozen state. We help you withdraw delisted tokens before the deadline expires.
Tell us what restrictions Cex applied and when. We respond within 6 hours.