i was little bit worried about amazon A10 Algorithm updates, so before placing our orders i’ve contacted them and done a lot of discussion over this. And they answered all my questions patiently. i’ve contacted them again & again for 7 days through skype or email over various questions which i have founded on-net & they made me worry less. At last, I placed my single order with them for my amazon sale page & within 2 weeks , the change in ranking was showing there. and after completing the full works i got no.1 page rank in amazon for my very competative kws & my sale has increased 20% within first month. Now, i am going to place some more orders with TRICKC.