has anything changed on your computer lately (settings, cookies, etc) and are you deleting your cookies after you complete your ds? as long as you get the congrats page it should credit so something must be stopping that process. wish i could give you some answers as to why this is happening but i am not all that computer savvy. has this been happening more lately or has this happened prior to last week? all i can say is to keep trying and hopefully you can get a sm survey to credit for you. keep smiling and have a great weekend.