MISSING ITEMS STILL NOT RECEIVED

i don't know what to do anymore, firstly they make me wait over a week to get my order, secondly when i finally receive it. its stuff i never ordered and the things i waited for are not there, i contacted them and they make me send pictures and subject me to a series of back and forth questions which i patiently answered , and that's the last time i ever heard from them . new week started and no sign of receiving my items and my child need them for school, they are just not bothered, to them im just a number.