Tried the MyOffer feature for LH SIN-FRA and for FRA-SIN. Both bids at USD $210 ($10 above the min offer) rejected. The first flight wound up being canceled, but was hoping to get a seat on the leg back.

In both instances, the rejection e-mail came within 24 hours of the flight. Not sure if they accept offers on a rolling basis.

Wondering if the section is full or if the bid was just too low to be accepted.

Better luck next time!