There is an actual code that they type into the till to find the discount registered on their system. In the Birmingham shop, they are used to stoats turning up and asking for the discout without knowing the code, so its normally ok because they generally know the code of the top of thier heads.
It should work in other shops but I've found it helps if you quote the code because they are not normally aware the discount exists and they seem to struggle searching for it on their system.
Now, the actual code escapes me.... i think it is something along the lines of W2025 but it could be any combination of these numbers. I did used to have it saved in my old phone...
Not much help
