Huggies leaks

I bought a few packs of Huggies, and they are the correct size according to the kilograms, but every time I use Huggies nappies it leaks! ? I am extremely disappointed with Huggies. Not any other of the other nappies (like Pampers) I use leaks. I feel like I wasted my money and I am not sure what I should do with all the packs of Huggies I bought. I didn't keep the slip, didn't know I need to keep the slip save due to buying faulty nappies.