FamRadar Trial Turned Into Unauthorized Debit Card Charge

I am writing regarding an unauthorized charge from Famradar. Some time ago I made a one‑time payment of €0.99 via my debit Mastercard through Google to try the tracking service, but it did not work for me and I did not agree to any monthly or annual subscription. On 13/08, an amount of €59.98 was taken from my account with the description “FAMRADAR FORT LAUDERDA / DEBITMASTERCARD BETALING”. I never approved this payment, I have never used the service, and I did not knowingly start any subscription with Famradar. I request a full refund of the €59.98 that was charged without my consent and the immediate cancellation of any subscription or recurring payment that may have been created on my name.