"Condition not taken seriously"

Finally got an appointment for my eye to be seen after almost a year of battling with intermittent blindness and sectary was informed to give me an appointment in two months but she insisted I go home with a promise of getting an appointment letter sent to my address. 

Its been 3 months now and no appointment yet.  Every time I phone the department I'm been told the same wait for a letter.  It's frustrating being that I can't see well and can't be seen by a professional.