Bad customer service

On the 05 February the items (Russell Hobbs - Stick Blender and a Bag) were booked in for repair in Makro in Centurion. This process is suppose to take up to 6 weeks. On the 26 March I went to Makro to check on my items, and they were not in there, probably still with the supplier or something . The lady who I spoke to said she will call me the next day because she is not sure why the two items are not back. I have never heard from Makro centurion since. It has been over 6 weeks and the service I am getting is really not good. Please help me.