Hi, would appreciate any ideas on this one as I'm really not sure.

We have two vouchers worth about 7500 avios and 90 quid or something to that extent. Linked to passenger names. I'm looking at buying two return reward tickets from MEX-MAD and using these vouchers on the booking.

The booking has the flexibility to cancel, so if we were to cancel later would we get the 7500 avios back as part of the ticket or would that part go back to an FTV and then the rest sent back per the Ts&Cs on the BA.com reward ticket website?

Thanks very much in adv for any help.