HOW THE FUCK DO I REMOVE A STUCK DISC FROM THE ANGLE GRINDER IT'S DRIVING ME INSANE. THE RETAINING NUT WON'T FUCKING BUDGE

>yes I'm doing it in the correct direction
>yes I'm pressing the lock button
>yes I've tried hitting the spanner/a punch with a hammer over and over

This is bullshit. Grinder is less than 2 months old I refuse to buy another one on principle