I was shocked that there were people confidently telling me my documents were wrong when I knew for a fact that they hadn't a clue what the law was. If it's part of your job to deal with name changes then I expect them to be trained on the subject.

The bank had its own internal definitions of what a deed poll needed to be - a definition they didn't publish anywhere and then act like I was the daft one for not knowing the specifics of their fanfic legal definitions.