What did we do wrong? We read all the instructions thoroughly and thought we satisfied all the requirements. She is at present in Russia and I am in the UK, and she applied for the permit in order to join me in the UK.
She enclosed: her passport, a certified copy of my passport, a certified copy of my UK permanent residence certificate, and our Russian marriage certificate with its certified translation.
Does anyone have a concrete idea of why it was refused based on the letter below - it is only two pages. And what to do next? It seems to suggest our application "does not attract a right of appeal".

