I've got an e-cert for 50% off up to 6 itins that is going to expire may 31st. Ticket needs to be booked and travel done by then as well.

Looking for suggestions/success stories on ways to either get UAL to extend the cert exp date or any other idea to use the cert. I don't have any personal travel planned between now and the end of May (and don't need any sort of MR).

And yes, i tried CC, but have had no success.