Poor service

I had charter come over many times to see why I was not able to send out searches-- and they said their service was perfect. I called a professional- who in 10 minutes told me the DNS server for charter was not working- he switched me to a public DNS and that problem is over. 2) Internet Service has gone out in our area a few times in the last month- after one outage- I could not get the "Windows Mail" to work- I set everything just as shown on the website.. which is different that the service people told me- neither works.. they said it would go to a higher level and they'd call me- no call. 3) I have a 4G cell phone.. and sometimes it will not refresh for charter email... says I have sign in problems- then it works again. I have spent maybe 20 hours dealing with charter and all the problems.. I'm really tired of them-- wish I had a viable alternative-- maybe I do with AT&T? I also switched recently to dish- and love the flexibility and even more channels for less price.. I even watch the TV on the smart phone- any channel I have at home- pretty cool-- Why is Charter always a problem? Oh- now charter has talked me into a modem/ router combo for $9+ more a month-- says that will help-- I see no difference- just keep paying and paying.