Very confusing app – DB Navigator Review

On the first step one can choose the date of travel and how many travelers but at the final step I was only sold one ticket and for the currant date, valid fur 2 hours ! And it’s non-refundable! Very strange app. Maybe it helps to be German but why ask for the travel date and number of travelers when it only sells immediate use single tickets? Could a German person out there explain this to me? They refuse to offer a refund so they clearly know they have a deceptive product and simply hope to profit from people’s mistakes.
Review by rongreer on DB Navigator.