Please feel free to call me any time on my mobile: 0099 999 999 999
任何时候都可以打我手机，我的电话是：0099 999 999 999
I would appreciate your immediate attention to this matter.
如果您能马上关注这个问题，我将不胜感激。
As this matter is urgent, I would be grateful for a swift response.
考虑到这个问题很紧急，如果能尽快恢复我会很感激。
