Order Confirmation - Not Recieved
You can contact the Billing CS Team via the ‘Support’ link above/below and ‘Submit a Request’ for assistance.
Good luck.
It sounds like it probably hasn’t been processed but if you log into your game account at https://account.arena.net/overview in the middle section under Gmae Accounts you’ll see the image for GW2 and it’ll either be the original red GW2 one or the new green GW2:HoT.