The Thing is one should never go for such sly websites and online coaching who proclaim that they will help you get high score.
There is so much of material available, with your friends, can be downloaded free, there is test magic where you can clear all your doubts.
If you study meticulously nothing will stop you from scoring high.
Never mind. Just throw all this from your mind and now put in all your efforts. I hope you have sufficient time to study for your test.
Wish you all the best!