but I am not sure about the going rate, so I may be AIBU.
My DD's counsellor wrote a one page report and charged £320 for this.
I am finally able to discharge the bloody thing which has been causing me sleepless nights, but I only have myself to blame, because I did not ask how much it was going to be and I assumed that it would be about the same as a GP's report which cost about £80.
Please don't tell me that this is my own fault, because I know this. 
But isn't it rather a lot of money for a report?