1. 把until now刪去,因為have not received已經帶有「直到現在」的含意:
• We have not received your reply.
2. 又或把until now改成so far:
• We have not received your reply so far.
• Just wondered if you got my email of Dec 20th. (與對方熟悉,語氣較為隨意)
• Your prompt reply is very much appreciated. (語氣較為正規)
• Appreciate it if you could take this on your urgent consideration to check. (直接但有禮貌)
• Your immediate reply is required. (語氣較重)
• I am yet to receive an update from your end, requesting you to reply ASAP. (直接且有強逼性)