Matt Arend Timepieces won't pay me what is owed to me

I have posted a scathing review on Matt Arend Timepieces page, but if course it is still not visible to the public. They have promised numerous times to pay me over R1,500 that they owe me! Yesterday they again promised that they 'don't de***** their clients', 'Accounts have concluded your payment', and that 'you should be receiving the POP today' ... alas, as with many previous promises ... NOTHING! I called again this morning and again the receptionist is the only person in the building. I told her that I'm going to keep pumping this message out on Social media until they contact me and pay me. ... Enjoy your day