I realise the phrasing sounds extreme but I don't know how else to put it.
I work for a large organisation and was previously employed in a role that 100s of other people were also. Said role involved training expenses that were payable by us and taxable. Long story short I know 10s of people that successfully claimed back these expenses, and even if I didn't, the criteria for which expenses have to meet to be eligible match the circumstances of mine.
So I first claimed a year ago (P87), there was initially no option to attach evidence so it was straight away rejected - fine, I anticipated this. I wrote to them providing evidence as well as a cover letter, and after three months received a response that it was still being rejected, describing the training inaccurately and not as per the contract of employment I sent. I wrote back to them to highlight their errors in understanding and the correspondence went entirely ignored. I then wrote to them again and have once again had it rejected, citing reasons that aren't true ("the training wasn't integral to my role", despite it being a term of my employment, etc).
They are flat out denying facts despite me providing evidence to that effect, hence me describing it as gaslighting. And now I really don't know what else I can do as I don't have anything further to provide for evidence because my evidence already is as clear as you'd get.
Please help MN. The sum is £500 and I'm on maternity leave so I really need it.