
It's so obvious the MIL arranged that disaster with the dad's seal being stolen. Right after MIL says she can help any problem for a price, a terrible problem happens right away? She obviously caused it. I don't know why the author never bothered to address she did it, or make her apologize for causing the problem. Instead she only apologized for the price she charged for fixing it.
He only used his long name when he forced his servants to do something, it makes sense he wouldn't remember it when he usually tried to persuade them peacefully instead