I'll chase it up with the support team now, though it might take a couple of days to get the membership put back onto your accounts.
We technically don't have an option to grant lifetime membership on our system, so it has to be reapplied whenever the previously applied membership expires.
That being said, we do have an option for longer than a year... I can only apologise for it lapsing so soon but I'll personally make sure it gets sorted for you all!