This the worst customer service I've ever seen This was my first time took calculus cause I need to put it in my resume and I need certificate or something to show I passI pass the exam.i didn't get any certificate. Not even email or something that I can use it for my jobAre you kidding meWhy do I have to waste my time here It's fraud .very very weak customer service. Don't waste your timeYou are not learning anything and not receiving any certificate