One thing that you need to take in consideration with the "statistics" is Time.
Humans all over the world adapt to certain things, If your "use" to crap service then you wont complain about it after a while. For example: Every week you call X company because you have issues with them, after a few months you are so fed up u cant bother to call them anymore as you already know what their answer will be.
If myself and everyone else here had to make a complain post every time we get bad service the ratio's would look 100 times worse than it is looking now, Most people including myself are Fed up sick and tired of complaining, because complaining does not seem to help our situation. "kyk noord en vok voort" when it comes to anything that resembles communication in South Africa, That poll is ridicules, we are now making polls about what Crap is the best crap...