Hi! I'm sorry to hear that you're having trouble with the surveys. There's a support article that might help here: https://support.code.org/hc/en-us/articles/115001331951-Using-lock-settings-for-assessments-and-surveys
Here's the part that may be the most useful to you.
I unlocked an assessment/survey but my students still cannot access the assessment/survey. What is going on?
Make sure you have unlocked the assessment for the right section of your students by looking at the "Lock settings" dialog for the right assessment. Scroll down to the "Individual student control" table and make sure your students are in the "Editable" column. Common mistakes include:
- Unlocking the assessment for the wrong section
- Forgetting to hit "Save" at the bottom of the dialog
- Unlocking the assessment too early - the assessment gets auto-locked in 24 hours.
- Adding a student after unlocking the lesson.
If none of those tips work for you, please write firstname.lastname@example.org so that we can get you to the right person to figure out what's going wrong.