Previous complaint still not addressed for a watch

I reported on the 25th of August 2015, that I had bought a watch in January, which was returned twice to Fossil for repairs and still it was not working and the watch is not even a year old. I later received a call from the following number *** (Fossil Head office) stating that they would contact the Menlyn store in order for me to exchange the watch, with a watch of the same value. Unfortunately the store could not assist me as the complaint or acknowledgement of the complaint and exchange was not in writing therefore there is no proof for the store to be able to assist me. As it stands now I only have the number above and do not know who is the relevant person to speak to. Please assist as I am at my wits end.<br> <br> Kind Regards<br> Basetsana