*******...poor service

A few weeks ago I found out that I was not intitled to another free screen replacement when i visited the repair centre...first time i took my phone for a screen replacement was because my phone fell and the screen cracked so first screen replacement was done...second time my phone was in my pocket and bumped against my desk at work and it immediately cracked again...then i realised that with the 1st replacement no screen protector was put on and therefore it cracked so easily. I then took it in again and the replacement was done(this time with a screen protector) now my argument is why was it never done the first time? I therefore feel im intitled to another free replacement.