Accredited DSTV Installer theft and poor service

An accredited DSTV installer was at my house on 2 January 2018. They did the installation of a new dish and Explora 2. The decoder had to upgrade it's software for approximately 25 minutes, in which they told me to phone DSTV when it is done. They then left, without checking that it is working.

I contacted the company (Mark and Arthur) after the installation on 2 January 2018, noting that 1 of the installers has taken my "switch" without my permission. I require this for another installation.

The invoice is labeled: DSTV Company / Cape Accredited. The installers wore shirts branded A-SAT Solutions. The companies website is: http://www.capetownsat.co.za/

Their contact numbers are: ********** / ********** .

They said they will get back to me after they have recovered it from their installation team.

They don't answer their phone when I call them. I need to understand if I have to lay a theft charge at my local police station?