Very Dissapointed

Im very dissapointed. I have been struggling a whole week to get in contact with them when I call they say the will phone me back. And it never happens. They installed our Fibre cabel wrongly and now that it is damaged its stated that it was self inflicted damage but is it not supposed to be underground how where we supposed to know that it was there and not underground. They are charging us Almost R2000 to fix a Problem that could have been avoided if they had just done their jobs properly. It is unaccebtable.