Unprofessional staff and ******** conditions

I received sterling silver earrings for Christmas ,and on the slips it clearly states that if they break I can either get a refund or it could be repaired within the 6months of purchasing, i went to them and they refused to refund it or repair it because it was not real diamonds in the earrings but only the stem of 1 earing broke but the earrings themselves where expensive they told me they would send it to head office to think about repairing them after I begged them to ,they said they would contact me within 2-3 weeks but never contacted me since i went there in January but i know that is a violation of the consumer protection act no 68 of 2008!