We use two ways to check sellers:

   1. Feedbacks
   2. Review services such as Hidden Answers

Some checking rules

   1. To mark service as Verified, we monitor all available review services. But if you have any bad experience with our verified services, please contact us and provide some proofs that you've been scammed by them. After some research we will remove Verified tag.
   2. To mark service as Scam, we also monitor the Deep Web and of course use your feedbacks. We receive plenty feedbacks from you and we thank you for it. It is really helpful.
   3. We haven't checked all services listed here. So some of them have Not Tested tag. If you have any feedbacks, feel free to contact us.