求救啊

求救！请问一下如果延期的话，当下必须得决定考试时间么？我明天是最后一天了可以延期了，能不能先延期然后等今年换题库时间确定了，再挑一个好日子呢？谢谢谢谢啦

....seems have to select a date which will be printed in the invoice

or just postpone now, and then postpone again when you know the exact date you wanna take exam,  total $ RMB 800