I also receive information about the canton of Aargau. The cantonal office refuse all companies which are not a Swiss governement insurance company (Also TradiConsult). If you show different student forums, lots of students or companies don't advise Tradiconsult (call the Ombusmann https://secure.om-kv.ch/html/aufgabe.html
the Swiss Authorities which verify the problems with company) An other student on this forum has call them and they also don't advise TradiConsult. (For example comparis which is the best website for comparaison.
Choose a Swiss governement company or all other company but not Tradiconsult.