Bad service

I m a home connect loyal customer for past 3 years, recently had a bad experience with home connect. I had a faulty router and the signal reception keeps dropping from where they have installed the current modem. I had a numerous call to the call centre explaining the current problem, no one seems to understand my problem and wanted to charge me arm and leg to move the current ONT device and replace the faulty modem. Can someone from HomeConnect to assist me with the issue. If I m not getting the proper response I m switching my service provider .. home connect will miss a loyal customer