Who Wants To Pay For A Dress They Can`t Wear?

I went to David`s Bridal in N.Attlebor, MA and have encountered many problems.
First, I had a woman who spoke in a loud voice about switching my mothers dress size, a larger than avg. Size, she didn`t want publicized. She also followed us around and drained our own conversations.
When I went to Davids Bridal the first time, with half of my bridal party, we picked out a dress and felt that if we didn`t buy it then we would miss out on discounts. We felt pressured to buy, even though we were just looking. My wedding was 6 months later but they insisted that this was the time to get the dresses. I went a few weeks later with my other brides maid to get the dress, but I didn`t know which dress it was. The store didn`t even have it on record, though they had the other dress for the maid of honor on record. So we picked the dress that I thought it was in the color wine that that I chose before. I was understood that we would come a month or so before the wedding for any alterations.
That was last week. Toni`s dress was different, and the wine color was different because it was a different material. One bridesmaid, my neice just turned 13 and as a quickly developing teenager, the chest was too tight. When we asked about exchanging a size up we were not allowed to because the dress had been discontinued and also it had been past 90 days of the sale and according to David`s Bridal, even exchanges are not allowed after 90 days. My other bridesmaid had a baby and was also under the impression she could exchange her dress, NOPE! She has to also buy a new one. Should I even tell you my sister gained weight and she had to buy 2 dresses also because it`s been over 90 days!!!
When I spoke to sales people, and the person in charge of Customer Service I was told that it`s not David`s Bridal`s responsibility if someone gains weight, has a baby or matures as a 13 yo does. They told me that dresses discontinue when it`s not selling because it`s not a popular style, leaving me and my friend to think that we have bat taste.
My tip to to: 1. Don`t go to David`s Bridal. 2. Check all policies before purchasing a dress and 3. Don`t follow the rules of choosing and buying a dress 6 months before as the bridal stores suggest. Don`t let them scam you and take all your hard earned money!!!