A lot of VPNs are giving you a risk-free 30 days trial but only after you paid for a subscription, but we as a premier service giving you a real trial period without any sub-meanings.
A free trial
In order to start your free trial, you have to choose one of three subscription plans. When your free trial period ends, you will be charged the price amount of the subscription.
Please visit Subscription Manager in the uVPN account menu to check the information about your subscription and current status.
Recurring payment and Refund
You can always cancel your subscription and stop the recurring payment in the same window.
If you want a refund, please read these articles: How money-back works? and Learn about refunds on Google Play.