Absolutely Disgusted

I just came out of the exam hall and received my score of 410 which is 40 points less than my previous attempt..Initially in the year 2016,I decided to appear for my first gmat exam where I scored 450.I contacted Mr.Rajat, and took the Verbal course followed by the Quantitative course.The course was extensive and I bought it again then I bought the quant part for full preparation .Although they did extended my course on the basis that I write a review and I did.I am not against them, no no , they were responsive however I have doubt with their product plus I took it twice.Would I recommend to anyone, no, not even if I take the exam next time .