"Rude admin staff in Maternity unit"

I went in to Maternity unit after endlessly trying to call and no one answering the phone. I met a very nice midwife who showed me round and then took me to reception to fill a referral form which I then handed directly to the staff in in the office. They said they would call me that week to book in a time for a scan. A week later I received a letter with a date for a scan but they had forgotten to fill out the time. When I called to find out the time the person on the phone couldn't find me on the system and made me repeat my name, address and date of birth 5 times before telling me I would need to fill in the referral form online again! I told them that was ridiculous as I had a letter. They then looked again and eventually found my details. when I couldn't understand the time they were saying they got annoyed with me saying I had taken up too much of their time already.. even though they had spent over 10 minutes trying to find me on the system. Somehow I ended up getting blamed for their and their departments errors. If they had written the appointment time on my initial letter then I wouldn't have been 'wasting' so much of their time in the first place! So far not impressed.