The notice said 15 days

Did not mention to send them a letter in the notice.  However, when I googled on internet, some comments said that I need to send them a letter by law.

所有跟帖： 

• yes --企鹅-- ♀ (0 bytes) () 02/14/2013 postreply 17:09:07

• law is broader than what is on the notice。18天包括寄信的天。当面送本人15天。 -kozy- ♀ (0 bytes) () 02/14/2013 postreply 17:09:55

• 真的啊？ --企鹅-- ♀ (30 bytes) () 02/14/2013 postreply 17:16:59

• 你真这么实心眼儿啊？仔细读我上面写的，谁能证明你没写啊？ -kozy- ♀ (63 bytes) () 02/14/2013 postreply 19:06:03