Overcharged by DSTv Installer

Bad experience of Smart Satellite- accredited installer of Multichoice. I called for help when decoder showed E-43 error. They charged me callout and setup (R450 + R650)fees. They charged me R599.00 for Diaplexer combiner, this item retails for less than R100.All this work was done within 1 hour. All other industries (plumbing, pools, electrical, etc) that charge callout also offer free service for the first hour excluding material if used, not this unscrupulous installer. They used my personal phone to communicate with Multi-choice which also took a while as one of the decoders struggled to take commands remotely. This is day light robbery! Never again SMART SATELLITE!!!