"Undated prescription"

I was awaiting my appointment for nearly a year. On the appointment I was told that others have it worse. Also, the Dr was very unprofessional and forgot to date my prescription which I was then unable to use as the pharmacy told me it's not legal for them to use an undated prescription. Now it is impossible to contact the department to correct their mistake and I'm very overwhelmed and can't start to use medication for my disability. This was a Canterbury department.