Apple sending me free iphones, what shall I do?

Couple of weeks ago I got a UPS courier who gave me a packet, I was not expecting that parcel so curiously I opened it up because it has my name and address on it. Inside, I got a brand new iphone 5. I was amazed how could this has happened. And today, again UPS courier gave me a packet which contained another iphone 5. I'm worried now, why this is happening and what shall I do?

Will a new iPhone 5 display assembly replacement fix my phone?

Will a new iPhone 5 display assembly replacement fix my phone?

Added (1). Obviously if just the outer screen was cracked it would fix that problem but it like an inner LCD crack that is only visible when you turn the phone on. Everything works, I just can't use the touch screen.

Cracked iPhone 5c and need a replacement?

I cracked my iPhone 5c screen and need to replace it. I wanted to purchase the glass myself since it would be cheaper. I don't have the money for a pro so I will try to do it myself. However, I'm confused on which one to purchase. I don't think I need an LCD replacement, because the color and lighting of the phone hasn't changed whatsoever. The screen is just cracked at the top left corner. I uploaded a pic of the two screens I'm confused on buying. Can anyone here help me figure out which one I need? Just say the letter (A) for the left, and the letter (B) for the right. Again, it's just the screen that's cracked everything thing is perfectly fine. Thanks kn advance!Cracked iPhone 5c and need a replacement Help