All ground station as a service are limited by radio licensing, you need to apply for transmit license to the country that the groundstation is located to legally transmit to your cubesat. Its not as easy as spinning up an EC2 instance

Some regulation horror: https://www.itu.int/en/ITU-R/space/Pages/API.aspx . Worst case you need to wait 7 years! to get your radio license

Compare this to a 4G modem / smartphone, its amazing that you don't need to file spectrum license to another country version of FCC everytime you travel. It. Just. Worked.