You are not allowed to take with you phone, bag - ...

You are not allowed to take with you phone, bag - BUT THERE IS NO LUGGAGE STORE for visa applicants, an you have to go to S-bahn station(so said staff on entrance) to leave you things to some one selling food and pay for this some cash(and you have no pay confirmation and storage receipt). Just think to pay cash for LUGGAGE STORAGE to unauthorized person - is this new way to make money?