"20 Week Scan"

I went here last week for my 20 week scan, worst experience ever. I was looking so forward to seeing my baby along with my partner but the person who did my scan rushed every part of it. I didn't get a chance to see my baby properly, numerous times I told them that their arm was was in the way and that I couldn't see the screen but they completely ignored it and seconds later my scan was over. I left there so unhappy, what was supposed to be an amazing experience turned into a nightmare