How are you? If you want to buy a policy, click on the pop-up dialog box and enter the registration code. Then there is the author's contact email.
The technology of the cowWe are a professional team of quantifiers, providing real-world strategies: http://bit.ly/2lJT92n
The Little DreamIf you are a third-party author, you need to contact the author to get the policy registration code, then click on buy policy, enter the registration code to get the policy license. If it's an official policy, you can pay directly to use the policy.