Arbitrage betting scams: how to recognise fake sure-bet offers

Warning signs: the offers to walk away from

• "Guaranteed profit", "risk-free", "100% sure". No honest provider says that. Even a correctly placed sure bet depends on every leg being accepted and not voided, and on accounts staying open. Anyone who promises a fixed monthly income is selling a story.
• "Fixed matches". Sellers of supposedly fixed results ask for money up front, often in crypto, and then claim the "fix" failed or ask for more. If a match really were fixed, the people involved would not sell the information to strangers on Telegram. Buying it would also put you close to a criminal offence.
• VIP groups with screenshots. Telegram, WhatsApp or Instagram channels showing winning bet slips and bank transfers. Slips are easy to fake or cherry-pick: post ten different tips, show the one that won. Many groups want a monthly fee or a "deposit" through their own link.
• Account rental and "betting on your behalf". Offers to rent your bookmaker account, or to bet for you with your ID. See the section on account rental below.
• Crypto deposits to a "trading platform". You are asked to send money to a wallet or an unknown platform that shows rising "arbitrage profits" on a dashboard. Withdrawals then need a "fee" or a "tax payment" first. This is the classic investment scam pattern with a betting label.
• Pressure and secrecy. "Only three places left", "offer ends tonight", "don't tell anyone". Real software doesn't need you to decide in ten minutes.
• Recovery offers. After a loss, someone contacts you and offers to get your money back for a fee. That is usually the second part of the same scam.

Why real sure bets are small and short-lived

A sure bet exists when the bookmakers' prices on all outcomes of an event add up to less than 100% implied probability. Typical margins are mostly 0.5–2% of the total stake, many below 1%, and the prices usually last minutes, not hours.

That is what genuine arbitrage looks like: a few euros on a few hundred, many times over, with real work behind it, and bookmakers that limit winning accounts sooner or later. Anyone showing you 20% a week, or "€3,000 a month with no effort", is not describing arbitrage. Our guide to sure betting explains the maths in full, and bookmaker limits explains why the opportunity doesn't scale forever.

Assumptions: decimal odds, both bets accepted in full and not voided, no betting fee. Real results can differ and can be negative.

Account rental: why it is a bad deal

"We pay you €100 a month to use your bookmaker account" sounds like easy money. In practice:

• It breaks the bookmaker's terms. Accounts are personal and non-transferable. When the bookmaker finds out, it can close the account and withhold the balance and the winnings.
• You stay responsible. The account, the bank details and the identity checks are in your name. If the money moving through it comes from fraud or money laundering, the first person investigators talk to is you.
• You hand over your identity. Log-ins, ID documents or bank access can be misused far beyond betting.

The same applies to betting through a friend's or relative's account: don't. If friends and family want to take part, they can open their own accounts in their own name. ArbVantage's Invite friends programme exists exactly for that.

How to check a sure-bet software provider

1. Imprint and company. A real company name, address and register number you can look up. No company, no deal.
2. A trial before you pay. You should be able to see the product with real prices before money changes hands, and the price and cancellation terms should be clear in advance.
3. Simple cancellation. In the EU, online contracts need a straightforward way to cancel. Look for it before you sign up.
4. Visible data age. Good tools show when each price was last checked. A list of "sure bets" with no timestamps can't be verified.
5. No profit promises. Honest providers show worked examples with the assumptions next to them and say clearly that results can be negative.
6. Normal payment. Card or a regulated payment provider, with an invoice. Not a crypto wallet, gift cards or a transfer to a private account.
7. You keep control. Software that finds prices and works out stakes never needs your bookmaker log-ins or your ID.

If you are unsure whether a bookmaker itself is licensed, check the regulator's list: in Slovakia the ÚRHH publishes licensed websites and a list of prohibited offers, and in Austria the Financial Market Authority (FMA) publishes warnings about unauthorised investment offers.

What to do if you were scammed

1. Stop paying. Don't pay any "release fee", "tax" or "recovery" charge. Block the contact, but keep the chat history.
2. Secure evidence. Screenshots of chats, profiles, payment confirmations, wallet addresses and websites, with dates.
3. Contact your bank or card provider at once. Ask about stopping the transfer or a chargeback. The sooner you call, the better the chance.
4. Report it to the police. In Austria at any police station; the Bundeskriminalamt's cybercrime reporting office (against-cybercrime@bmi.gv.at) also takes tips. In Slovakia at any police department of the Policajný zbor SR.
5. Get consumer help. In Austria, Watchlist Internet warns about current scams and the Internet Ombudsstelle offers free advice and dispute resolution; the European Consumer Centre Austria helps with cross-border cases. In Slovakia, the Slovak Trade Inspection (SOI) and the European Consumer Centre Slovakia. Elsewhere in the EU, your national European Consumer Centre (ECC-Net).

Our own limits: what we can't promise

We sell software, so we hold ourselves to the same checklist. ArbVantage finds price differences between bookmakers and works out your stakes. We do the maths; you decide every bet. We don't guarantee any profit: odds move, bets get voided, and accounts get limited, some of our own included. Our betting basics and tax and legality guides cover the rest, and the imprint names the company behind us.

FAQ

Are there guaranteed betting profits?

No. Even a correctly calculated sure bet depends on every leg being accepted and not voided, and bookmakers limit winning accounts. Anyone promising guaranteed or risk-free profit is not telling the truth.

Is renting out my betting account legal?

It breaks the bookmaker's terms, because accounts are personal and non-transferable, and the bookmaker can close the account and keep the balance. You also stay responsible for everything that happens on an account in your name. Don't do it.

How can I tell trustworthy sure-bet software?

Look for a real company in the imprint, a trial before you pay, simple cancellation, visible timestamps on the odds, normal payment methods and no profit promises. Good software never needs your bookmaker log-ins.

What if someone wants to use my account?

Say no and don't share log-ins or ID documents. If a friend wants to take part, they can open an account in their own name. If you have already shared details, change your passwords and tell the bookmaker.

Sources

• Watchlist Internet: warnings about online fraud (Austria)
• Internet Ombudsstelle: free advice and dispute resolution (Austria)
• Bundeskriminalamt: reporting offices, including against-cybercrime@bmi.gv.at
• European Consumer Centre Austria
• FMA: investor warnings (Austria)
• Policajný zbor SR (Slovak police), Ministry of the Interior
• Slovenská obchodná inšpekcia (Slovak Trade Inspection)
• European Consumer Centre Slovakia
• ÚRHH: licensed gambling websites in Slovakia
• ECC-Net: European Consumer Centres Network

As of October 2026. The calculations are illustrations under the stated assumptions. Not betting, legal or tax advice. 18+.

Betting involves risk, sure bets included: odds move, bets get voided and accounts get limited. Only stake money you can afford to lose. If betting stops being fun, our responsible gambling page lists free help in Austria and Germany.