POOR SERVICE/REFUSING TO RETURN MY JEWELLRY

I took my jewellery to Harris Jewelers in CW on monday. I wanted them to have a look and tell me what the value would be and what evaluation certificates would cost. They called me yesterday to tell me that i need to pay R3k for my jewellery. Job has been done. Not once did the salesman call me to inform me that it would cost so much, and ask me if they could proceed. I did request him to first quote me. The store owner called me today and refuses to give me back my jewellery because i refuse to pay it. If I had known it would cost so much, then I would never have asked them to go ahead, let alone leave my items there! The store owner was so unaccommodating, kept interrupting me and spoke to me in such a rude manner! He didn't even try to listen to my story let alone, try and understand that I do not have any knowledge of the process... I tried to explain to him that I do not knw what the procedures are when jewelry gets evaluated. They can apparently not give a quote beforehand which I think is absolute nonsense! The salesman never explained the procedure to me or never told me that they cannot do that!