Nintendo switch stolen, can't find serial number

I got robbed last night and among other stuff my nintendo switch was stolen. I need the serial number for the insurance company, but I bought it off someone who had no receipt nor the original package. On my nintendo account it says I can "revoque original console" meaning they can remotely block my account on the console, so I figured they could probably know which (what serial number) console it's on ? But I have no idea which service to call or if that's a real option. Thank you to anyone who could provide a teeny tiny bit of help 🙏🌟

Edit : thank you everyone for your kindness, I'll contact them on monday (the joy of getting robbed a friday night) and edit again to see if they can give me the serial number !

Update: (a thousand years later) the insurance company refunded me both the price of the switch and the price of the animal crossing game that was inside ! I bought an oled switch and pre-ordered the new Zelda, I can't wait :) That was a lesson on keeping every detail of every electronics you own ! Thanks again everyone 💐💗