A: I'd like a refund for this broken lamp.
A：我想退掉这个坏掉的台灯。

B: I'm sorry. We can offer you full refunds if you have the receipt.
B：很抱歉。如果您有收据，我们可以为您办理全额退款。

1) 退款

2) 退还

3) 退税

1. 退还的款项 (n.)

2. 退还 (v.)

noun

1. an amount of money that is given back to someone

verb

1. to give money back to someone

Synonym: reimbursement, repayment