The item I ordered arrived after I had to ask them why it was taking a bit long, but the next day it arrived on my doorstep

The item I ordered arrived after I had to ask them why it was taking a bit long, but the next day it arrived on my doorstep. Unfortunately my cellphone repair guy told me he could not use it on my Sony xperia phone. It was not a genuine Sony part and that I should have ordered a case cover for the phone to protect it and the cracked back would be hidden. So I spent my money on a part that unfortunately wasn't right for my phone.