The CD player doesn't play.
I'll get you a replacement.
我帮你换一片新的。Maybe I can offer you a credit note？
那也许我可以给你一张取货证明？
That's not much use to me.
那对我没什么用处。To be honest,I am not happy at all.
老实说,我很不满意。I'm afraid that's no use to me.
恐怕那对我没什么用处。I'd really prefer a refund.
我真的希望你能退钱。Could I please have a refund？
我可以退钱吗？