I recieved an invoice in the mail from DHL about a month later... then you just mail them a check.
Here's some canadian sites I've found through my searches (still none as good as the US sites, but these are the better ones that I've found). You might want to check these ones out...
www.dogfatherandco.com www.barkandfitz.com www.johnandrewforpets.com www.renspets.com www.peculiarpets.com www.foufoudog.com www.poshpup.ca www.pooch.ca www.coconapoleon.com