License
All reliable and honest online casinos operate under the license of some country. In order to operate a casino and be able to issue licenses, gambling must be allowed in the country. The license is issued either by the country itself, or by the jurisdiction that is interested in this type of business. 

If the casino violates the rules, agreements or deceives the client, you can always file a complaint with the regulator that issued the license. In most cases, regulators are on the side of the casino in advance, but an objective licensee will take a sober look from the outside and resolve the issue. In some cases, the regulator may even revoke the license of an online casino.

In a number of casinos there is no form for filing a complaint with the regulator, and then the chances of finding justice are equal to zero. Often this is found in casinos operating under the license of Costa Rica, Panama, Anjouan, Seychelles.

Regulators in Curacao and Gibraltar are listening to complaints and trying to fix the problem, but their voices are rather weak.

But Malta, Alderney and the Isle of Man have enough weight in conflicts, and with their help, you can achieve an honest solution to the issue.

Support service work
Even the most experienced players may have questions about the game, documents, bonuses or withdrawals. Everything helps to solve the support service - your connection with the casino.

In a good online casino, such as pin up, support will work quickly, efficiently and often around the clock. Users can contact specialists via online chat on the platforms, via email or call. All contacts must be listed on the site. The most effective means of communication is online chat: they answer in minutes. You can wait a few days for an e-mail response, and the phone can be answered every other time.

Before playing, be sure to contact the support team and look at their work. How they answer questions, how detailed information they give, how much they try to help the client - all these signs help to determine whether specialists will help you well and quickly in case of problems.

Withdrawal of big winnings
Not all casinos are solvent. Unfortunately, even licensed online casinos sometimes fail to pay out big winnings, let alone dishonest fake casinos.

You can win hundreds of thousands of dollars in the machine, but you will be lucky if this money is paid out. Some platforms may cheat and try to deceive you, some may simply not have enough money to withdraw. Then we are talking about the lack of opportunities.

There are high variance slot machines. Winnings in them are rare, but large. So, in such machines, you can win 100 thousand dollars by betting only 10. Often there is no betting limit in slots, and casinos receive a lot of money from rich customers, but if they win, they cannot pay out the prize. Such casinos simply hope that no one hits the jackpot. Honest casinos set limits, but these limits make it clear that the platform does not have much money, and the withdrawal may take several years.

For this reason, before you start playing, evaluate the financial strength of the casino and make sure that the casino has enough funds to pay out the prize. In addition, learn about withdrawal limits. If the maximum withdrawal amount per month is $5,000, then you will receive your $100,000 for more than a year and a half. And if during this time the casino goes bankrupt, then the full winnings will never be yours.

Payment Methods
Good casinos use several payment methods. You, as a player, should always be able to pay by card, e-wallet, bank transfer. Find out in advance about the size of the commission and the speed of the transaction.

Many players use Skrill and Neteller online wallets and the Paysafecard prepaid card because their terms of use include working with online casinos. Sometimes users make deposits using a mobile operator.

The balance in legal Ukrainian casinos can be replenished with the usual transfer from Privatbank or Monobank.
An alarming call may be the inability to deposit money in the usual way. If the casino asks to send money to the card number or offers you third-party services, refuse to play on this platform: most likely, you have encountered scammers.

Good reputation
You can find a good and honest casino that pays out winnings based on the reviews of other players. Users share their experiences on thematic forums. A casino with a lot of negative reviews will most likely try to cheat you with winnings, but similarly, a new casino without a single review or with bought positive reviews may be dishonest. Moreover, complaints can even be against a large and honest online casino, so trust the words of other users, but always use other ways to check platforms.

What is the risk of playing in dishonest online casinos?
Firstly, such platforms may simply refuse to withdraw your winnings. Secondly, they can verify the identity for an infinitely long time, delay the payment, change the rules and delay the withdrawal. Thirdly, they use slots with a low percentage of returns, which makes it almost impossible to win at slot machines. Well, besides, they can reset the bonus money after applying for a withdrawal, set a low payout limit so that it is impossible to receive large amounts; force the player to continue playing in order to receive a payout and much more.

Registration
You can determine the quality level of the casino even at the registration stage. If you follow the link, quickly go through the account of any social network and start spinning the slots, you are in a casino that, if it happens, will not be held accountable to anyone.

An honest casino will comply with the law and will not miss the registration of a person from Ukraine who has not reached the age of 21. The platform will also ask for passport details and contact information, and for confirmation, it will ask for a photo of a passport or other identification document. The compliance of the entered and passport data is checked manually by the casino employees, and only after verification they allow you to start the game.

The online casino does all this in order, firstly, not to break the law and not lose the license, and, secondly, to make sure that there is a living person in front of the screen, and not a robot.

Rating
Some thematic services make casino ratings. In such ratings, you can find a good site, so look closely at the top positions of the list and better ignore the casinos below.

It is important to pay attention to the criteria by which the rating was compiled, because the entire top can turn out to be just as fake and fake as the casinos listed in it. When compiling a rating, you should take into account the availability of a license, player reviews, the quality of the support service, the speed of withdrawal, the variety of software, the security of confidential data - that is, everything that you need to consider yourself when choosing a platform.

Providers
When choosing a game in a casino, look at its provider. Major brands-developers are presented only in proven casinos with a license, so the presence of slot machines from well-known manufacturers adds to the platform.

Large providers are responsible for their machines, issue licenses for them and guarantee the payment of winnings. They set a high percentage of return and test their software in independent laboratories - slots from well-known brands have a lot of advantages.