Internet inconsistency and being gaslit by IT support

The internet is always inconsistent and I have called a lot. Tonight I was tired of going through the motions and I got gaslit by a rep and his supervisor literally saying I have made accusations which is not true. I literally read verbatim what was in the forum. I also suggested that it may not be the best idea to have exasperated call/IT agents handle calls to already upset customers because it will only make things worse. He told me that I should find another company and in Nevada we only have one that provides high speed internet and that is cox. At least for now my internet is working I pray it continues to work I do not want to call back. This is so frustrating!