very very very poor please help

Fiber has been installed in my area I currently have supersonic LTE I called the call center so I can switch to Fiber this an been a night mare I have waited 3 hours on a call than I am put trough a technician who said they need to transfer me to the customer care I waited another 1 hour than was told by the consultant she is having network problem I must call later the service is very very very poor please help.