iPhone Repair 605

My mother went in to fix her Galaxy note charging port only and they lied to her and told her she would need a screen replacement as well because it's necessary to change the chargerShe's older and not knowledgeable about electronics so she agreed to the unnecessary Price gouge from average cost online $charging port to whopping $screen+charging port+laborWe pick the phone up almost a month later cause my mother was given a new phone so it slipped her mind to pick it upI pick it up and same issue (nothing was fixed) I return it they claim faulty repair and fix it3-days later I bump the phone on a table and the brand new screen breaks and I take it in and after a day with my phone I'm told "they are not responsible at all to repair or replace The screen they installed"Secondly they refused multiple times to print me a receipt or bill of sale stating it's not their policy and since this incident almost a week ago they began posting signs saying something about no ret