Actually I think that some of the banks are taking the piss a bit now.
But its also due to that voucher website which has IFA pretensions money saving expert encouraging everyone and their dog to claim back fees, sometimes hundreds of pounds for their own repeated irresponsible behaviour with regards to over draft fees.
Martin Lewis went around day time TV encouraging students and other reckless types to claim back their fees, ultimately a few indeviduals with no sense of responsibility came along and took advantage of that system a little too much, I think he played a big part in the courts siding with the banks, because it was quite simply unfair that the banks had to defend actions against someone who was claming back their fee for every month they went over-over drawn.......
Thats a rant over.
In the OPs case a little bit more politeness in wording might do wonders with this.