TeamViewer is a commercial product. The free version is intended strictly for (e.g., helping a family member with their computer). The time limit forces commercial users (businesses, IT support, remote workers) to purchase a license.
If you are truly using TeamViewer for personal reasons (helping family, accessing your home PC from work), you can contest the block. teamviewer time limit
You can use this for a blog post, FAQ, help desk article, or customer notification. TeamViewer is a commercial product