"not getting to see a consultant"

I have glaucoma and feel my sight is getting worse I have not seen a consultant for many months. Last week I had an appointment with a doctor at 10. 45am, I gave my name in and was informed the clinic was cancelled as the doctor had called in sick. I was very upset that nobody had rung me I was at home till 10. 15am. I do realise it was  unavoidable to cancel the clinic, but I was upset because I was not informed beforehand.   I live a distance from the hospital. paying £30. 00 for taxis, I am a carer for my husband he has dementia so he was with me also it was an effort to be at clinic at the allotted time. I feel the situation was badly handled with little care for patients.