Fraud of consumers' hard-earned money, so that many people have no way to protect their rights, the mint app is a suspected fraud APP.
Anyone who buys a membership shouldn't complain, because the service itself is illegal. It's only fair to run away, and it's fine if the server data is cleared, otherwise it's reversed and submitted to the police, and anyone who isn't buying a membership has to be held accountable along with it (though only the publisher is usually arrested in China).
The popularity of the Mint app lies in its rich Chinese kindle resources, which are not comparable to other websites. As long as someone uses the transcoding service on townhallnovels.com, townhallnovels.com will keep an archive and provide it for others to download, so most of the books on it are the same as the ones you buy directly from the kindle store, that is, the original (genuine cracked version).
English pirated resources are all over the place and the quality is good, but Chinese pirated resources are more scarce. I'm not saying that people are more aware of copyrights, but they lack the spirit of sharing, and if they have resources on hand, they always think of selling them for money. azw3 posting is a lot of old men who buy their own books and share them with others, but because the resources are so scattered, it's hard to find books.
Internet fraud response:
If you are cheated of money online, it will be very difficult to recover the money, unless the police solve the case fast enough, or the criminals are still able to pay back. So be sure to give the information of the scammer to record, so that it is easy to later be able to check the information through some technical methods to prevent the scammer to escape. Communicate with the police, and then just cooperate with the police to act together.