Score: 10
My experience with Zamnesia left me speechless. Probably due to incorrect use on my side, I did not experience the desirable effect, so I wrote about it in a review on their website. To my surprise, a customer service representative reached out to me to try and understand the issue, and committed to their client's satisfaction, offered to send me again, free of charge, another package. I'm pleasantly impressed. I did not complain or expected such thing from them but this level of service gave me a lot of confidence in this business so no doubt I'll become a good and regular customer.