I have cell phone with a Chinese mobile number and I have some problem while sending messages to some international countries. Sometimes the messages are send by me reach on my friend’s number who is in UK, but when he tries to reply back the message cannot be received by me. I did try to call their customer service center and I was told that problem wasn’t at china mobile’s end it must be the sending party that’s at fault. Beside that other international sms seems to be working fine, except the occasional delays of sending and receiving. Please Help.