If you want to watch a session for free within the 48 hour period and the link is not working, check if your school IT department is blocking the site. Some schools have security protocols in place and only authorized sites can be accessed. If this happens, just have them allow the www.worldlangteachers.com website to be accessed.
An easy way to check if that’s the case is to disconnect your smartphone from your school’s network wifi and click the links using your cell phone connection. If the links open with no problem, then your school network was causing it. If the links still won't open, please contact me right away!
You can also try to connect at home.