I've earned quite a lot of points for payback (exactly 100 points!)
But I can only take them as airtime. If I leave the points and not do anything will they stay 'banked' or will I lose them if I dont do anything?
As long as your SIM remains active, the credit will not expire @mr_steely
But as Payback the points only carry forward once.
EDIT Sorry, that could be clearer, if you redeem the Payback as credit it will not expire as long as yourcSIM remains active.
If you do not redeem your Payback points this time, they will roll over only once to the next Payback period.
"Never attribute to malice that which is adequately explained by stupidity." - Hanlon's Razor
Hi @mr_steely you can only leave them as points (aka rollover) once, so if you haven't done so before the 100 points will be added to your total for the next payback period (Jun - Nov) ready for you to redeem in Dec.
If you don't redeem again in Dec you will lose the 100 points but any points you earn between now and Nov will be rolled over to next year.