Ahhhh... well, good luck with it next time! (Locking clips are suuuuuuuch a pain and so unnecessary now, that most seats don't even come with them anymore, all the seat shells still have a storage spot for them and a label, but it's just not there! Every time someone comes to BRU asking if we sell them, I give them a verbal decision tree of why they think they need one, and then give it to them only if they understand why/how to use it, I have a massive supply saved up just in case )