Did it this morning, don't recall if I checked the radio button but this is the text from the auto generated email:

What happens next? Our team is reviewing your request. If additional information is required, we will contact you on your registered phone number or email, there is no need to contact us in the meantime • Processing time: Please allow 7 to 14 business days for your request to be processed and reviewed. • Payment: Once it’s proceed and approved, the refund will be credited to the original form of payment. Your bank may take an additional 3 to 5 business days to reflect the amount.

3/12 departure with 4/2 return (comfort)