Chinese phrase
请退还〜元 qǐng tuì huán 〜 yuán
Meaning
Please refund ___ yuan
When to use it
This politely asks for a set amount of money back. It is common in payment or customer-service situations and sounds clear and formal.
Example dialogue
网上付过行李费，柜台又收我钱，请退还300元。 wǎng shàng fù guò xíng lǐ fèi guì tái yòu shōu wǒ qián qǐng tuì huán 300 yuán
I paid the baggage fee online, but I was charged again at the counter. Please refund 300 yuan.
抱歉，请把收据给我，我们马上办理退款。 bào qiàn qǐng bǎ shōu jù gěi wǒ wǒ men mǎ shàng bàn lǐ tuì kuǎn
Sorry. Please show me the receipt, and we will process the refund right away.