On the web site is stated: "Note that XNSPY's features supported with rooted Android devices could take a few days before they are made available on a new Android release."
This is just to fool you and make you pay for the services. In reality, all the rooted features works only on Android 6 or lower. The available features for a non-rooted phones are very limited. If you ask for a refund based on this sentence, they will refuse you. Do not trust XNSPY!