Shelly's Dress Hire - deposit

when my granddaughter put a deposit of £50 pound on a dress and decided less than twenty four hours later the dress was unsuitable for the event she was not offered even part of deposit back I am very disappointed with the treatment of a young girl in her teens. According to Trading standards the shop can hire the same dress out and make double the amount at my Grandaughters expense. Best form of advertisement is by word of mouth and I will not be passing on the name of this establishment to anyone