Angry client

I've been calling since the 14th February about the ZTE router that's not working it was collected and exchanged to 101 router that still not working what do you take clients for I have to hire a router from people in order to do my job and kinds to attend classes because it's almost 16 days without any means of wifi connection from your side I'm still having a big useless container with me that's not working everytime I call your PEOPLE they act like they're helping me but at the end I'm the fool rain thinks I am MAKE NOTE OF THIS DO NOT BILL MY BANK ACCOUNT FOR SERVICE YOU FAILD TO PROVIDE ME WITH I REPEAT DON'T BILL ME FOR YOUR KAAK SERVICE