Weekly Wedding Tip
brought to you by bridalguide.com
"When you order your gown, be sure to get a written contract or receipt that describes the dress you ordered in detail, your alterations agreement, any special services and the date your dress will be delivered."
Additionally, you might like to take digital photos (if allowed) of the dress(es), gown swatches, etc so that you don't go by just your memory or written documentation on what you expect things to be in the end.
I recently caught an episode of Say Yes to the Dress on TLC where a bride was saying that the color of her custom dress was not what she had chosen when designing the gown with Pnina Tornai. Luckily everything worked out and the bride did end up getting a gown she liked (although if I remember correctly, the original gown she created was not the one she ended up with).