"Very disappointed and left feeling unsure and…"

Have been attending Worcester for fortnightly scans for my twin pregnancy due to them being high risk. I am constantly having to chase up my appointments because they are simply not booked even though I’m assured after each appointment they will be. Following a scan yesterday I’ve been told I need to see fetal medicine and I’d have an appointment for this Thursday. Again nothing has been booked and I am the one who is having to spend my entire day chasing this up. every time I call I’m told call back call back. I was even told to call back Monday which unless I don’t understand time is after Thursday so how does that work.