Just now 10 mins ago, my PM SIM card was locked because of three time incorrect entry. Then I submitted ticket and sent private message to CS_Agent, none of them got reply. I understand today is Sunday, PM agent did not work today. But this issue to me is very urgent, because I cannot make any call now, so it needs to be resolved immediately. if there is "Unlock SIM card" function in My Account page, then I did not need to wait for CS_Agent to be available to help with it.