Many problems in the service, little response from...

Many problems in the service, little response from customer service, technicians are good, but the first filter, telephone and / or emails, I do not think so.
I did not try another internet provider of this style, this was the least I had heard criticism, but the truth is, they have me tired, not a week goes by when the service starts to fail (generally low speed), I have not suffered many cuts, but once I had 5 days without internet and I work with internet!