If it is good for your club to face other people's questions, you can answer them directly. If others are questioning your club or work, you should first affirm their doubts, then ask a question he is interested in, and pull them back to your advantage by answering your own questions. For example, if others say that your card is expensive, you should first say that some people who are interested in fitness will care about the price, but as a service place, which is more important, low price or high quality service? Or do you ask him if he doesn't care about quality service and the coach's attention and help? Then you can take the initiative in the conversation. Generally speaking, customers are questioning and dissatisfied, so don't answer directly at this time.