QQ CS asks for your pswd (Score 1)

What about QQ-the prominant IM software in China, which has 500 buddy limit for basic account? Today I fail to add buddy any more with a diagbox reads "Your buddy count reachs up-limit", while I did Excel, I have 471 guys,14 groups.So,I called CS,after 5min 56sec queuing,a girl answered,astonishing enough,she asked me for my account pswd "Is it ok we login your account to check the problem?"