I am sorry this happened to you it is a shame.But I do know how you feel.My mom lives with us and I take care of her and we bought her a coat and she doesn't like it, she says it is to short. Sooo there is rarely a time we can please her.So we have just decided to take it back and get our money she can go without the gift.
Gift giving isn't what Christmas is about to begin with. It has gotten way to commercialized IMHO.(In my honest opinion)