Hey @Anna2006 !
Welcome to the Community. 
You should be able to receive text messages form all approved short codes listed here. These are the ones approved by the Canadian Wireless Telecommunications Association (CWTA).
If the messages you're trying to get are originating from a short code that isn't on this list, we'd recommend contacting the relevant organization or business to request an alternative way to communicate or authenticate, and suggest they provision their short codes in Canada with the CWTA and Canadian wireless carriers.
If the short code is on the list, we'd suggest trying to send ''Help'' to that same number to see if anything comes back through.
Keep us posted!
