Does Metro have a cancellation fee?

Excuse me, I'm just wondering about the cancellation policy for Metro. I'm considering booking a trip with them, but I'm not sure if there's a fee involved if I need to cancel my reservation. Could you please clarify if Metro imposes a cancellation fee and if so, what the terms of that fee might be? It would be greatly appreciated if you could provide me with some details on this matter. Thank you.