-Log in to your account at web.solfeg.io
-Click on Settings
on the left-side menu;
-Click on My Subscription
-Click on Upgrade
-Choose the plan most suitable to your school's needs;
-Enter your billing details;
-Now, you have a 14-day trial to test out all the premium features. During this time, you will also receive a quote to your email which you can bring to your school's director, accountant, district manager or any other person who oversees purchases at your school. After 14 days, an invoice will be sent to you and the school's accountant (for your convenience). You can pay by card, by invoice or by check.