How to stop Octave period or payment

To evaluate Octave function, SWI benefit trial period of 3 month.

If customer would like to stop Octave evaluation by 3 month, how to stop this period?

I did not find this process, please let us know it.

Takashi, just remove your device from the platform and if no comm. with Octave, you won’t be charge. You can also switch the device off. If you don’t communicate with Octave within the month, you won’t be charged any fees.

I would like to confirm it.
If customer remove only power this unit and no communicate with Octave within one month, SWI will not be charged any fees. Right?
This meaning is that customer do not control Octave platform for removing operation?

if no communication with octave within the month = no fees.