I completely understand your frustration. I called my school several times and requested extra transcripts because I was convinced that they were not being received. Meanwhile, many of my cohorts had already passed the exam. I started to feel behind as I wanted to take the exam right away, but I used that time to study lightly every day and did my best to be patient. My advice would not to to contact the BON, they will likely just brush it off. I would however update HR at your new job, I think that they will understand.