고객지원 = customer support

▶ twenty-four seven : 24시간, 일주일 내내 운영해야 하는 것 / 365일 연중무휴 - twenty-four seven customer support 연중무휴의 고객지원 - If a business doesn't provide twenty-four seven customer support, they will not succeed. 365일 연중무휴 고객지원을 제공하지 않으면 성공하기 어렵지요. - We offer twenty four seven customer support through our online chat. 저희는 온라인 채팅창을 통해 연중무휴의 고객서비스를 지원하고 있습니다.

▶ 13. Writing Business Emails Jenny: Louise, would you mind proofreading the email? Louise: In a minute. Just let me finish this sentence. Alright, let’s have a look…. Dear Mr. Hoover, I hope you are well. I am writing regarding the delayed supplies. We're really sorry for any inconveniences this delay may have caused. But I can assure you we’ll do everything we can to send it out to you today. Your order will be sent via express delivery this afternoon. You will receive your supplies in three business days. The courier will provide door-to-door service. Mr. Hoover, as you know, we provide 24/7 customer support.