Originally Posted by
Ldnn1
I believe you could book the LHR-GRU and LIM-LGW on one ticket using your voucher, if award seats. You'd have to call Avios (or whatever call centre is doing the voucher bookings these days!) to do that. What you can't do is mix and match award seats and revenue fare using the voucher.
In any case the GRU-LIM would have to be separate to the voucher booking.