I'm not even surprised the MC didn't even think of going to the legal office of the country or something and ask them to help with collection. Nope instead be an arogant prick just like the people trying to bully him and start a fight in front of the family's house.
The guards could have also just checked if the thing was real by asking someone inside to verify it, so they don't accidentally create a crisis. Nope do whatever we please cause we the gaurds baby..shit goes south? Whatttt how can it go south lol.
Character using their brain doesn't fit with the authors milk train to cash out....
Also shouldn't people already be able to recognize him? After all the shit he's done in the capital and all the pavilions want to jack him off? A red head dude with a strand of silver wearing werid MC cloths both expensive to make but looks cheap as hell, and going around doing things like he owns the place....