购物英语对话-Returning a Radio(9)

（单词翻译）

A: Hi. I don't want to keep this radio.
B: No problem. May I have your receipt, please?
A: Sorry. I could not find it.
B: We can't give you a refund¹ without a receipt.
A: You know, I bought it at 3 p.m. yesterday.
B: I wish I could help you, but it's store policy.
A: Every rule has an exception.
B: Perhaps if you try customer service.
A: Yes, they might be able to help me.
B: They're upstairs. Good luck!