短句求最佳翻译

Looking forward for your reply or providing your contact numbers. I have sth. urgently to contact you.

期盼您的回信或告知您的联系电话，有急事需要跟您联系。
Looking forward to you reply, or tell me your telephone number so that i can contact with you if have any urgent case.

Look forward to your reply by telephone or tell you that you have an urgent need to link with.

I am looking foward to your reply, or informing me of your telephone number in case that i can contact you for some urgency.