The Small Claims Court couldn't apply in the post linked above because it doesn't involve a consumer and retailer. The poster was self employed and his dealings were with a business.
[I have, in the past, been successful in claiming £100 (IRL) through the Small Claims Court.]
whathome's post is very sad and puts the original post in perspective. IMHO HelenQ should let this one go, it's not worth the stress and, as for additional elective scans, I wouldn't bother with those either as there are safety concerns in relation over exposure to ultrasound.
Thanks for your post michaelm and it does show the sadness suffered by whathome.
I still intend to pursue it to some degree even if by a strongly worded letter as their attitude was appauling. There was no word of apology. Mistakes can happen but the lady in question and her husband were very very rude and abusive to us. All they need to do was say sorry or make some gesture.