Article 48 a bid winner shall, in accordance with the provisions of the contract, fulfil its obligations and finish the project.

第四十八条中标人应当按照合同约定履行义务，完成中标项目。

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As a backer you have entered into a contract directly with the project creator, and if the project creator does not fulfil their part of the agreement, then the backer is in a position to take whatever legal action is required to get their money back.

FORBES: Kickstarter: Dream Maker Or Promise Breaker?