Legal analysis: First of all, if both parties agree that the payment is a deposit, then if you breach the contract, the other party may not refund the deposit. If the other party defaults, you can ask for double deposit.

Legal basis: Article 587 of the Civil Code of People's Republic of China (PRC). If the debtor performs the debt, the deposit shall be used as the price or recovered. If the party paying the deposit fails to perform the debt or the performance of the debt is not in conformity with the agreement, thus the purpose of the contract cannot be achieved, it has no right to request the return of the deposit; If the party receiving the deposit fails to perform the debt or the performance of the debt does not conform to the agreement, so that the purpose of the contract cannot be achieved, the deposit shall be returned twice.