I can't see that they are going to get sticky about that. Apply without mentioning the previous request. If perchance they actually queried this then surely all you have to do is point out that you are the older sister and it's not your problem that they released them to another family member. In reality no matter what the rules say they would probably release these to anyone who could prove some reasonable connection.
Imber
thank you so much for answering me and i think i will do just as you say and see what happens again thank you