@Anonymous User
I am in the same boat where i tend to have about 6 to 12 months voucher passes at any given time ready to be applied to my account.
Unless NowTV changes the one voucher pass at a time rule (very unlikely IMO), i suppose the only options are either keep a log of dates somewhere on a calendar or a memo reminder when to apply the next voucher code.
Or maybe you could cancel once you apply the pass (don't worry you get the full pass duration) and when the pass runs it's course you will get a message on your screen when trying to watch something that you need to purchase a pass, then just add the next voucher code to your account.
This is a bit of a pain, but i suppose it prevents you missing the deadline date if you forget to apply the voucher code and should prevent being billed by the monthly auto renewal payment system by NowTV.
To be honest never tried the cancel method described above, i always set a calendar reminder on my phone and add my next voucher code within the last 30 days before the current subscription date expires.
