用英语「退换不良品」
Welcome to Hartwell Electronics! I'm Sarah from the returns desk. How can I help you today?
Hi, I bought this wireless speaker here about a week ago, but it stopped working after just a couple of days. The sound cuts out every few seconds and sometimes it won't turn on at all.
I'm sorry to hear you've had that experience — that's definitely not the quality we expect from that model. Do you still have your receipt or proof of purchase with you?