Total disgrace brought 5 phones i phone 7 plus one...

Total disgrace brought 5 phones i phone 7 plus one had issues from day 1 with getting service outside of my home and it not charging properly . but being it was my daughter's phone mind you she is 12 she really didn't want to bring it because she was afraid of not having it. So i called At time of problem which of course they have not record of. So i went today and they refused to help me .As my daughter was historically crying they said they can sell me a new phone. They should be ashamed of themselves i always thought they stood behind there products boy was i wrong!!!! Its all about the money not costumer loyalty. I was sick how i and my 12 year old was treated by both the workers including the supervisor shame on you!!!!!