由于我是第一次参加SOA考试，没有经验，求助大家了～想三月份考，交钱之后，刚刚收到confirmation,然后去prometric注册考位，先是注册武汉的，然后显示是

No seats were found that match your request. Please choose a different month and click the 'Go' button or choose another test site that may offer more convenient appointment options. 然后再试北京南京也是一样，是因为都没有考位了吗？还是我的操作问题？如果是都没有考位的情况下应该怎么办啊？谢谢各位的帮助了！！