Way back when, when I was a loan underwriter and account manager for a small loan business I got a complaint made about about me because I declined a loan application from one of my previous customers.
Applicant claimed I was discriminatory, hated her because of 'previous mistakes', was 'too posh to understand what it was like to be poor' (I'm not posh, just come from a part of the country with no distinctive regional accent, so I speak like a stereotypical English person in a film). My decision would lead to her children starving and them all becoming homeless and she hoped I could live with that. She also needed to money because she was a carer for her elderly mother, etc etc etc.
I had declined her application because the last loan she'd had she'd paid over a year late after telling the company (me,
mostly) that her mother was dying in hospital, then her mother died and she had funeral arrangements to pay for, then she was off work because she'd become guardian for her young siblings after her mother's death... this went on for months and months. A whole huge tale, and she'd sometimes be on the phone to me for a good half hour at a time. She was treated with the utmost sympathy, had interest free payment plans, all late charges removed etc etc - it was a small business so I had a lot of discretion.
Until her mother rang (it was definitely her, I needed to ID her to take the payment) and paid the balance for her daughter. I was most surprised to hear from her! She had a good rant about how sorry she was that her daughter hadn't paid, that she was bloody irresponsible and still lived at home and kept losing jobs.
Unsurprising the complaint was not upheld.
I dealt with a lot of complaints over the years, but this one always sticks in my mind. Another one who I remember for sheer audacity complained about me again for declining her loan application - because she'd made six previous fraudulent applications and when she sent her documents in I put the pieces together (our system picked up matching details on some of them - like where the funds were to be paid!) linked them all and blocked her. I told her why and she said it wasn't my job to do that, it was only my job to look at the application in front of me, and complained.