Yes - we can.
We do our invoicing through Paypal, and your school can use its credit/debit card to pay the invoice.
Just let us know when you want to go ahead with this and we'll set it all up.
We also offer discounts if you have multiple teachers wanting to sign up:
4 to 9 users - 30% off ($207.90 per student)
10 to 49 users - 35% off ($193.05 per student)
51-99 users - 40% 0ff ($178.20 per student)
100+ users - 50% off ($148.50 per student)