Defy Authorised service centre Springfield Park is a *******

I recently took my microwave to an authorised Defy service centre in Springfield Park. I received the quote and decided to phone other equally good services centre's, only to find out I'm being overcharged for the repair. I have been trying desperately to get hold of the owner, Hemi, and have left numerous messages for him to call me. He is clearly not interested in taking my call. It's very disappointing as all my home applinces are Defy. I will definitely not be supporting this brand anymore.