Hey everyone - looking for some assistance.

Booked an Aeroplan reward with the first segment YVR - ZRH on Edelweiss. Of course ideally I'd like one of the throne seats on the A340.
Neither the AC PNR and the LX PNR work on either the Swiss or Edelweiss sites to access the booking and select a seat. I tried phoning bu they said they could not select a seat for me.
There was a page on the Edelweiss site where I could submit a request to select seat which I completed, and received an email. But I have no other way to check or confirm my seat is truly selected.

Any other ways to select seat I'm unaware of to confirm?
Or is that confirmation email accurate and all I need...?