Originally Posted by florens

I am not sure I understand your question. Maybe you find an answer in this guide?

Apologies for not making myself clear.
I have looked at that guide and did not see my question answered.

I may be mistaken but I think I saw somewhere that you have up to a year to complete the flights on a multi carrier reward.

If so say i book flights to Oz and back in November and the distance flown is around 26000 miles. (This leaves 9000 miles remaining from the 25001 to 35000 band)
Can I then add additional flights for the following July (when the become available) to somewhere like Toronto with this 9000 miles and not have to use any additional avios to pay for the Toronto flights?