Agreed. Sounds like groomer was use to doing Goldens or a dog they stripe or thin the hair. We all learn as we go along. You will never let this be done again am sure. Entering shows, travel and motels all cost to much to have this happen.
No closer than 2 weeks prior to a show should you bathe them...and only if they are grimy, or skunked; otherwise just rinse them(can spray them with waterless shampoo) with water and towel. I time my baths when they are on the blow and hair is tufting out of their pantaloons.