I have a survey, and I can see that I have received 12 replies.
But when I make a report to have an over view, there are 63 replies counted. I guess the test-replies somehow have been included.
How do I remove the test replies from the report?
There are tools in the Report Editor that will let you filter out TEST responses. See the SurveyGizmo documentation for details – https://help.surveygizmo.com/help/filter-report-data