We are working with Amazon to solve this issue, as it seems they are sticking their labels just above our code...
You can go ahead and register it using the code 9999-55.
If you have trouble registering it on a mobile device, please, try to use a computer. If you continue to have trouble, please don't hesitate to contact us.
In any case, please have your Full Name, Email Address, and Device Type to honor the guarantee.
On an additional note, let us tell you that you do not need to activate the Breather to start using it. The device functions mechanically, and you can use the resources on our webpage to start your training.