Because a software orders separately, it sometimes takes several months from calling-explaining at home-tracking-ordering separately. Not anytime soon. However, sometimes a good phone call can promote sales. However, if you are studying, you don't need to consider it. Such a company can learn a lot.
And most importantly, even if those hundreds of dollars haven't been sold for 2-3 months in a row, it's embarrassing. . . Sales is a very stressful and challenging job. .