Serial number on a Sense Herakles Pro tank?

[Mr T]

Is there a serial number on a Sense Herakles Pro? I´ve been asked for the serial number by the seller in a warranty and refund discussion, and I can´t find any serial number..
Help me out, please..

 

[Paratech]

The serial number would be on the packaging that it came in.

 

[Mr T]

The serial number would be on the packaging that it came in.

Thank you, I found the serial number