The RTP is built into the game mathematics, it's not something the
bookmaker can just adjust on the fly to cheat you. Every slot or table game has a predetermined house edge and that edge guarantees the casino makes money over time without needing to rig anything. If you're losing at casino games it's because of the house edge, not because the RTP is rigged. That's just basic gambling math.
That said, your broader complaints about poor customer service and withdrawal issues are unfortunately very common with lesser known bookmakers, especially ones operating in gray area jurisdictions. The fundamental problem is that when you deposit money with an unlicensed or poorly regulated
bookmaker you have essentially zero recourse if they decide not to pay you. They can make up any terms violation they want, drag out verification for months, or just ghost you entirely and there's nothing you can do about it.
This is why I only use bookmakers that are properly licensed in major jurisdictions with actual regulatory oversight. In the UK that means UKGC licensed books. In the US that means state licensed sportsbooks. In other countries you need to research which regulatory bodies actually have teeth and can enforce customer protections. Most offshore licenses like Curacao or Malta are basically worthless because they provide no real consumer protection.
The reputation management angle you mentioned is absolutely real. I've seen dozens of sketchy bookmakers flood review sites with fake positive reviews to bury the legitimate complaints. It's a standard tactic for operations that know they're screwing customers and need to maintain the appearance of legitimacy to keep attracting new deposits. If a
bookmaker has overwhelmingly positive reviews that all sound similar and generic, that's a massive red flag.
My advice for anyone reading this is simple. Stick to the major established bookmakers that have been around for years and have strong regulatory oversight. Yes, they might have slightly worse odds or fewer promotions than some sketchy offshore operation. Yes, they will limit you if you win consistently which is annoying. But at least when you win they will actually pay you without putting you through months of verification hell and invented excuses.
The extra half point of line value or the extra bonus percentage you might get from an unregulated bookmaker is worthless if they're not going to pay out when you win. I'd rather bet at minus 110 with a book I trust than minus 105 with a book that might steal my balance. The risk simply isn't worth the marginal improvement in odds.
For sports betting specifically, the major books have plenty of liquidity and sharp enough lines that you can build a profitable approach if you have actual edges. You don't need to chase offshore operations promising better odds or looser limits. Those promises are usually bait to get your deposit and then they'll find reasons not to pay when you try to withdraw.
If you're already stuck in a situation where a bookmaker won't pay you, your options are limited but you should try posting on major gambling forums, filing complaints with whatever licensing authority they claim to operate under even if it's probably useless, and warning other potential customers wherever you can. Sometimes public pressure will get them to pay just to avoid the bad publicity but honestly most of these operations don't care because there are always new suckers willing to deposit.
The lesson here is do your due diligence before depositing anywhere. Check reviews from multiple sources, verify their licensing is legitimate not just a logo on their website, start with small deposits to test withdrawals before committing serious money, and if something feels off trust your gut and walk away. There are plenty of legitimate bookmakers out there, no need to risk your money with questionable operations.