Is it still considered fraud to return a faulty product using the warranty from the newer product?

I recently bought a screen protector 2 days ago for my iPhone XS Max that has now cracked because I dropped it, and now wondering if it's fraud to return a previous screen protector from the same brand that is faulty due to faulty worksmanship. I lost the receipt for the faulty screen protector and was thinking of replacing the faulty one with the receipt from the newer screen protector.

The faulty screen protector has lost its hold around the screen, leading to air getting in inbetween and around the screen and protector.

This is my 3rd screen protector I bought from this company as the other 2 were faulty, and I don't want to spend an other $80 on a screen protector when the previous 2 were faulty.

Added (1). Keeping in mind that the screen I bought before the new screen protector was faulty and that I only lost the receipt for the previous screen protector. I don't want to waste another $80 on a screen protector.

Added (2). My new screen protector I dropped isn't the faulty one! It's the one before that is the one with the faulty worksmanship as the glue had weakened around the edges and sides.

$80 for a screen protector? You must be rich!

Yes, it is illegal.

Bad idea.

Probably.

You keep forgetting you were a Constable, enforcing the laws.

Yes, what you propose is illegally - and immoral.

It isn't considered anything, it IS INTENTIONAL FRAUD, and you KNOW that.
If you DROP the phone the damage isn't because the screen protector is faulty. The faulty part is the USER.