How much should schools charge when most of the learning is online?

I would like to raise a very important issue regarding the quality of e-learning. My son is in Grade 6 and hardly spends more than a couple of hours every day on learning, much like other kids of his grade. There is only a 10-minute introduction by the class teacher every morning. Most of the content is online and students are on their own. There is almost no interaction with any of the school teachers. It is all self-learning. And yet we are being asked to pay almost 90 per cent of school tuition fee.
A lot of parents have rightly raised their queries and concerns with the school and asked for a further discount. Parents are spending more time to assist their children instead of the teachers. We parents have requested for online classes but the school hasn't been very appreciative of this suggestion. Why should a school expect parents to pay almost full fees without providing quality education or support to parents and students? Besides, our school is only offering a 10 per cent discount and that too if parents agree to enrol their kids for the next term. Such a clause is uncalled for. Schools should be a little more considerate. -Gautam Gehi, Dubai