$100 tech charge on bulk account

My internet was disconnected due to non payment of $100 for technician visit. I live in an apartment on a bulk account. I was told I would not have to pay for a visit since it’s a bulk account. I have called repeatedly to get internet turned on again. One agent did restore service but next day it was disconnected and the charge for the tech visit was put back on my account. The tech didn’t actually fix anything while he was here. The internet is supposed to be 1 Gig but it constantly drops and buffers. Please restore my internet and zero out my past due balance.