Now TV Smart Stick pre-loaded vouchers

[Nmpnmp]

How many vouchers can I store to my account when purchased pre-loaded on Smart TV sticks? Is there a limit and / or expiration of said vouchers?

Thanks

[SweetBlitz]

I currently have four, but have had five or six.

I did ask about expiry and was told 2099 via chat, but there are issues with the vouchers randomly disappearing, so take a screen shot.

https://community.nowtv.com/t5/Offers-Vouchers/My-preloaded-vouchers-have-been-cancelled/m-p/540005#...

 Also if you hover over the buttons, it will give you a url containing the code, so you can ask chat when they expire.