Waste of money and time, I have paid for one year for Math class, there is no consistency of teachers, every month we had new teacher, half of the classes were gone to adjust to the new teacher, I wasn't happy with the service and requested for cancellation, it's been 8 months I haven't received my money back, I don't have hope that they will refund my money(~1000 dollars). Please don't fall in to their trap.