Hey. This forum has been so helpful but I was also wondering if someone can help me out with this (it's just taking a while for me to get through the Asia Miles hotline). Sorry for the pretty lengthy text.

I'm booked on a redemption flight for MNL-MAD-MNL economy class and during the time of the booking, I was also placed on waitlist for MNL-MAD-MNL premium economy, as well as on MNL-CDG-MNL also on premium economy.

Today I got an email that all the flights that I'm placed on waitlist status has been changed to confirmed (for both Manila to MAD round trip and CDG round trip.) Now I realized that I want to revise and book an open-jaw ticket instead (MNL - CDG, MAD - MNL) seeing that I'm currently confirmed on those flights already.

It also says in the email that I should issue my ticket by April 5th. Now my question is, are all of those flights that already changed its status to confirmed technically already guaranteed / reserved for me until April 5th? Will I have to issue my ticket / decide to change my booking to the open jaw ticket immediately or I can still wait until next month or until April to do so, without the risk of losing any flights?

Also, in the first place, is it possible for me to cancel my initially confirmed MNL-MAD-MNL economy class flight and have them issue me the open jaw ticket (and disregard the rest of the confirmed flights)?