Legal analysis: the loss of the deposit slip will not change the fact that the deposit has been pledged. When you ask the other party to refund the deposit, you only need to issue a statement or prove that the original deposit certificate is invalid. However, if the other party refuses to admit that he has received the deposit, and the party concerned has illegally provided a deposit receipt, or there is no other evidence to prove that he has paid the deposit, then the party concerned may have to bear the legal consequences of inadequate proof and cannot ask for a refund of the deposit. Deposit is a certain amount of money paid by one party to the other party to ensure that its behavior will not harm the interests of the other party.

Legal basis: Article 216th of the Civil Procedure Law of People's Republic of China (PRC). A legally effective civil judgment or ruling must be fulfilled by the parties concerned. If one party refuses to perform, the other party may apply to the people's court for execution.