Hi @Anonymous User
You will need to contact the Retailer that you bought the stick from.
If it was direct from NowTV, then here's a link to live chat to ask them for the missing item that you believe was missing from the box.
https://help.nowtv.com/contact-us/managing-my-devices
These are the items that should have been in the box.
As well as your Smart Stick, you'll also get:
Remote control.
2 x AAA batteries.
USB power cable.
Power adaptor with mains plug.
