Bad service

Last year Dec 2014 I booked in a phone for repairs for a charging port, after 2 months they told me the phones screen has cracked. Why after 2 months they tell me such. Finrite and Edgars don't want to take responsibility for their actions, I have spoken to them so many times. The only reply I get from them is they're investigating. <br> The phone was received in good condition so I want the phone in good condition. And I'm not gonna pay the R500 for the screen. I REFUSE because the phone is under insurance.