How can EF increase profit?

Well, I think that, EF is a really good system for study, for example I study here on a A level programme and I see a high quality of teaching here. I think that EF can make a really good profit every year more and more, if they do a lot of advertising on TV channels, they will have a good profit and will become more popular in many other countries. Many people in the world know about EF, but personally I think that EF have to try to put their advertising on TV, because advertising on TV is the most beneficial thing.