First of all, we want to let you know that we offer a free 3-day trial so all our users can experience the full potential of the app without any limitations on functionalities or disturbing ads.
If you were not satisfied and didn't want to pay for the subscription, you could easily cancel the free trial via your device Settings.
Regarding refunds, unfortunately, we do not have access to any client payments as per App Store guidelines. All the payments go directly to Apple and they are the ones collecting and refunding all the money.
How to request a refund for App Store purchases:
Sign in to reportaproblem.apple.com.
Tap or click "I'd like to," then choose "Request a refund."
Choose the reason why you want a refund, then choose Next.
Choose WiFi Map, then choose Submit.