"Wasted journey"

Late last year I started dialysis. I was advised I'd need a course of Hepatitis B vaccine over 6 months. This should have been the last. The letter arrived in February for an appointment in May. I turned up early in the morning but was told that they'd got the date wrong as it was 5 days short of 6 months. They told me to leave and go home and they would send me a new appointment. 

I later got a call from a member of staff who said their manager sent their apology and they said they'd send out a new appointment. My journey is 20 miles. It's been a wasted journey, wasted fuel, and wasted time. I feel frustrated because whenever you go there are nurses sat about who appear to be doing nothing. It's a waste of nursing staff who could be in hospitals, in my view.

Why would you send someone to a vaccine centre when I'm in a hospital 3 times a week having dialysis? I could get the vaccine there. It seems ridiculous. The staff were friendly and it's not their fault. But if feels like the left hand doesn't know what the right hand is doing.