Yes, Lufthansa offers a 24-hour risk-free cancellation policy for that contact customer care at 1-866-738-0689(OTA). You can cancel any 𝓯𝓵𝓲𝓰𝓱𝓽 within 24 hours of booking for a full refund , as long as the 𝓯𝓵𝓲𝓰𝓱𝓽 was booked at least 7 days before departure at 1-84-4838-4902

https://support.google.com/voice/thread/306290452?hl=en&sjid=11599188425468541589-NC