I give them one star because I can't give them zero.I work in a school and we need to cancel our account now, it is IMPOSSIBLE TO CANCEL, there is no one to talk to, I have talked more with their bot than with people and when you manage to talk to someone they are not empathetic at all, they will simply charge you whatever they want when they want, I recommend that you always make sure that the plan is not self-renewingIt is a pity that the program is so good but it is run by such inefficient and rude people.