要求A Reply to Complaint Letters 回复投诉信请根据以下信息对投诉信进行回复80-100词。投诉者：Peter Smith回复者：Xiao Feng Manager投诉原因： 2022年2月10日在线上商城online shop购买的无线耳机Bluetooth headset连续出现了故障一直无法解决。调查结果：确有质量问题新供应商supplier提供的产品不合标准解决方

Dear Mr. Peter Smith,

Thank you for taking the time to bring your recent purchase of the Bluetooth headset to our attention. We apologize for the inconvenience caused by the malfunctioning of the product you received.

After investigating the issue, we have found that there is indeed a quality problem with the product provided by our new supplier, which does not meet our standard. We would like to offer you either a replacement or a full refund for your purchase. Additionally, we would like to provide you with a discount card as a gesture of goodwill.

We appreciate your patience and understanding in this matter. Please let us know which option you would prefer and we will arrange for it as soon as possible.

Sincerely,

Xiao Feng, Manage