We measured many times, I got my mum and husband to double check the measurements. I spent an hour ordering the dress and double checking every button press.
I worried too much. The dress is lovely. Absolutely fantastic quality fabric and perfect sizing to the measurement! It's everything I hoped for. I definitely need to get the length adjusted, but that was expected and just as well, because every child is different. She is in love with her "wedding dress". Now all we have to do is wait for the wedding day to arrive!