Hi! I'm the OP. I did pay for the dress, and after talking to the store they are replacing he dress free of charge. Apparently this has happened several times. You would think that they would start making sure you're the person supposed to be picking up the dress. The bride has apologized for her mom. (I think the mom should apologize not the bride) Right now she's not talking to her mom. As for why she doesn't like me, I have no idea. She's always been so nice to me until this incident. Luckily the wedding isn't until July so we have time. Sorry for the long reply! Thanks everyone!