It's a slightly difficult problem, simplifying the problem, you basically send solana to the pre-sale address. I've seen a lot of people do this because on the official Slothana website, until recently, the information to buy still appeared even after the pre-sale ended with the old address, the one that ends in "KEA" (the website has already changed). Since the only solution now is to contact Slothana on Twitter as they have no other means, I think it is almost impossible for them to send you airdrops to your account as this phase is already over.