Do u mean they already happened? Or they'll happen this coming Tuesday and Wednesday (12th and 13th) Coz u said are happening on the 6th and 7th which already passed.
Not sure what day in the week, but just keep checking everyday, ur parents will probably tell u if u got an email, all the best. don't be disheartened if u don't get an interview, u will still do well if u put in the effort.
I think they coming this week (don't take my word for it), according to someone who apparently went to the open morning and asked the vice principal. Again please take my word with a grain of salt.