Can we save Royale boxes through the next Royale?

I have some royale boxes from last week that I would like to save, but I'm not sure if it will mess things up when I get new royale boxes. I assume that they're coded differently and I'll be fine. However, if anyone has some knowledge of such a situation, I'd appreciate it. If anyone is curious, I'm doing this because I'm trying to save Lxp. I already pulled Nolan and I want to put myself in a situation to gain a valuable platinum level if I happen to pull him again.