hěn duō qíng kuàng xià dìng jīn fù le yǐ hòu rú guǒ nǐ fǎn huǐ kě néng bú tuì

很多情况下，定金付了以后，如果你反悔，可能不退。

In many cases, after you pay a deposit, if you change your mind, it may not be refunded.