Why am I being charged to use the Balega and Teebrush font?

When the lessons were recorded, Belaga Std Regular and Teebrush were a free fonts, and had been for some time. But in 2021, they stopped being free. This is frustrating, but it's also the nature of how this works, so understanding this now is a teaching moment in itself. So presuming you do not want to pay for Balega and/or Teebrush and do not want to become a Cricut Access subscriber, I recommend you use either Cricut Sans Bold or upload and use a free font from dafont.com for your T-shirt instead -- here are some good choices:

Note: Do not attempt to download Balega or Teebrush from another source that claims to be free, or you may expose your computer to viruses or malware.

Learn how to download and install fonts in this tutorial.