This situation is very common. Some places sell other brands. This should violate the consumer’s right to know. But in the future, you should improve your identification ability when shopping, and check carefully to make sure there are no damages or defects. You can buy it with confidence, but mofeel is a good brand and the loss is not too serious. If the trademark is not torn off, it should be returned or exchanged. If it is torn off, it depends on how well you negotiate with the dealer. If this is an infringement, you can report the situation to the relevant departments, or seek help from the news media to expose it, or directly Bring a lawsuit to the People's Court (but it seems unnecessary, but if your rights have been seriously violated, you need to take measures).

ps: I cannot guarantee the accuracy of the answers because I just learned these contents!