I tend to agree with the 'just leave it crowd', but then those who know about my run in with Tayna Batteries (avoid at all costs) know I find it difficult to let things lie. Like the time I was owed £10 for a clean of a soldier's married quarters. The wife annoyed me as she had complained about a clean and when I went it was on the inside, but she didn't apologise. I left phone messages and then finally sent a red final demand. Nothing. So I wrote to the husband's Commanding Officer at regimental HQ, explaining that my next step was to call upon the services of the Thomas Higgins Partnership, debt collection specialists and that I was letting him know because a CCJ can often have ramifications for the people who live at the address afterwards and as it was MOD property I thought he'd want to know.
She went ballistic! She wanted me to drive (the 24 miles there and 24 miles back to discuss it). I told her to just pay up.
She did. Very nice warm feeling to get that cheque.