"District nursing visits"

A District nurse is supposed to come 3 out of every four Fridays to change Picc line dressing and flush. No one had come by 3pm so phoned to find out what was happening. Was told I wasn't on that day's list, as someone had changed frequency to fortnightly instead of weekly. They said they would phone back once spoken to nurses. They called back to say would come Sunday. I'd already explained I was going away, so reiterated that Sunday was no good, it should be today. They said they would speak to them again. After an hour no one had called back, so I phoned again. I was on hold for over 30 minutes. Eventually someone answered and after checking said that it had been booked in for Saturday. Why had no-one phoned me to tell me, instead of leaving me waiting and worrying about what was happening late on a Friday afternoon?   This isn't the first problem I've had, one week they turned up a day early, without advising me in advance. Luckily I was in so it wasn't a problem. However I find the communication generally poor and the service disorganised as they don't seem to understand they need to come every Friday for 3 out of 4 weeks, and on the 4th week the hospital will change the dressing when I am being treated.