MoodleCloud

Hello.

In the trial version of MoodleCloud, the maximum upload file size is 400 MB, but I cannot download 300.

In the settings of the Site Security Policy I indicate the permissible size of 1GB, but the changes are not saved - after clicking the "Save Changes" button, the value returns to 100Mb

In the settings. Course default settings. Default value: Maximum upload file size for the “Site” level (100MB)

In the settings, the folder left the default value of 0.

I read in the documentation that when you install Moodle on your server, the values ​​change in config.php, but what about MoodleCloud? when is there no access to this file?

Thanks in advance