Legal analysis: Whether the gym should refund the deposit depends on the specific situation: 1. If the consumer and the gym have signed a contract and paid the deposit, in principle, the deposit contract is established and takes effect, and both parties should perform it according to the contract. 2. If the consumer breaches the contract due to his own reasons, the other party may refuse to return the deposit. 3. However, if the two parties have not signed a deposit contract, and the consumer has no receipt and other materials to prove that 200 yuan is a deposit, he can ask the other party to return it. 4. If the other party refuses to return the goods, you can try to go to the Consumers Association and the industrial and commercial department to complain about the gym.

Legal basis: Article 5 17 of the Civil Code of People's Republic of China (PRC). Where there are more than two creditors, the subject matter may be divided. If each creditor enjoys the creditor's rights by shares, it is the creditor's rights by shares; If there are two or more debtors, the subject matter can be divided, and each debtor bears the debt according to its share, it is a debt by share. If it is difficult to determine the share of the creditor or debtor according to the share, it shall be deemed that the share is the same.