Worse service and No delivery

I bought a phone for my son &the phone was not charging, then when we took out the charger to check why is it not charging the charging circuit came out with the charger.I went to the store on 15-11 to return the phone at the store & was collected on 16-11 to be taken to the insurance. on 03-12 I received a call from the store & they said I need to come to the store to explain to the insurance what happened to the phone & I waited at the store for 2 hours before I could be able to make that call to the insurance. at the store the queue was long due to a lot of people that had problems with their phones, that's how pathetic the service is at edgars mobile.I managed to call & explained to the insurance what happened to the phone. on 17-11I called the store to check if the phone is back & a lady picked up the phone & she was clueless, she returned my call and said the guy who's working on this query is not in & he'll call me back which they didn't call back. on 22-12 went back to the store & the lady at the store contacted the insurance & she gave me the phone to my surprise the agent said I should explain what happened to the phone? I did explain on 03-12 what nonsense