Anyone has an experience in replacing a lost SIM card under China Unicom? I have a SIM card which I have misplaced. As I have used the mobile phone number to purchase some spa package, I would need to continue to use the same number. Can I check how is the card replacement process like? I have registered before using my passport and I still have copies of the expired passports which I have used to register many years ago. In addition, I have registered the card in Shanghai China Unicom branch office, can I do it in Shenzhen branch office instead? Thanks for sharing.