The deposit slip is not signed. Can I have it back?

The deposit contract was not signed, and the deposit could not be refunded. Because the deposit contract was established when the deposit was delivered. After the establishment of the deposit contract, if the party paying the deposit fails to perform the debt or the performance of the debt does not conform to the agreement, resulting in the failure to achieve the purpose of the contract, 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. There is no need to refund the deposit. In Article 586 of the Civil Code, the parties may agree that one party shall pay a deposit to the other party as a guarantee for the creditor's rights. The deposit contract is established when the deposit is actually paid. The amount of the deposit shall be agreed by the parties; However, it shall not exceed 20% of the subject matter of the main contract, and the excess shall not have the effect of deposit. If the actual amount of deposit paid is more than or less than the agreed amount, it shall be deemed as a change of the agreed amount of deposit.