You can contact Air Canada's customer service number. The number can vary based on where you live, but generally, it is available in their website. Find on the "Contact Us" or "Support" section on their site to find the correct number. A lot of companies, like Air Canada, have active social media accounts on platforms such as Twitter or Facebook. You can reach for them by sending direct messages or by including their accounts in the content you post. They usually have teams to respond to customer queries through social media. Air Canada usually provides an email address for inquiries from customers. It can be located at their site. You can write an email that explains your issue or concern and send it to their email address. Certain companies provide live chat on their sites.