British airways ticket can only be ticketed via mail

I think there may be some confusion here!

British Airways, like most airlines, offers various ways to book and manage tickets, including online, phone, and mobile apps. It's unlikely that the only way to ticket a British Airways flight is via mail.

In fact, British Airways' website and mobile app allow customers to book and manage their flights, check-in, and access their booking information online. They also have a customer service phone number and email address for customers to contact them for assistance.

If you're having trouble booking or managing your British Airways ticket, I'd be happy to help you troubleshoot or provide more information on how to do so.