POOOOOOOOR Services

I have no words customer agents never respond after 5 , there is so much i have to say but i think the most frustrating part is ... HOW CAN YOU NOT HAVE A WAY OF CHANGING A WIFI PASSWORD ?????? i phone for 3 months and the last guy told me i must give him my new password and it will be changed within 24-48 hours , i phoned again a week a later and another agent told me no there is no way to change you password , the password i gave the agent a week before is for future (meaning if they find a way in the future to change the password then they will use that password to change my password ... DOES HAT EVEN MAKE SENSE ... !!!!!!!!