Don't use TTS for TV Installations

We recently relocated to PE and contracted TTS to install a new satellite dish and cabling. This was based on the advice of the TTS \professional". After 8 months the dish has rusted but TTS says it cannot do anything to assist as the incorrect dish was installed. My concern is that 1. the dish should have at least 1 year guarantee and 2. the dish was recommended by TTS."""