Sure it's ok to 简单的再寄一张卡, when you check "replacement" option, as long as you 简单的再 pay a fee
http://blog.wenxuecity.com/blogview.php?date=200706&postID=42162#EAD765
http://blog.wenxuecity.com/blogview.php?date=200706&postID=42162#EAD765