This thread is to provide assistance to @Ya1 and their daughter over a forgotten railcard. In the grand scheme of things this should be simple to resolve, the rail industry has a clear policy in respect of forgotten railcards.
Discussion about Northern's Fixed Penalties, letters between the DfT and Northern and the current Northern SJPN issue is not helpful to the OP and should be discussed in a separate thread.
Discussion about Northern's Fixed Penalties, letters between the DfT and Northern and the current Northern SJPN issue is not helpful to the OP and should be discussed in a separate thread.