Bad service

<p>i booked in My Samsung J5 Prime for repairs at Mtn because it wasnt charging. when i took it in my phone's screen was cracked and it was working fine just it didn't charge. i had this phone for 2 months and it is still under warranty. i was surprised to get a sms saying i was quotated for R3000 to fix the phone. i called Mtn to find out what was happening i was told my phone is not charging because the screen is cracked, how can a phone not charged because the screen is cracked. i thought its a mechanical problem not a screen problem</p>