Makro not attending to a logged return

But how long must I wait for my query to be resolved. I purchased three desks on Sunday the 25th of June. They arrived. I received them within that week. I logged a return and a refund within that week. The employee acknowledged my logged return on her system. I AM STILL SITTING WITH THE THREE DESKS AND IT'S THE 12TH OF AUGUST. THE DESKS WERE FAULTY SO MAKRO TOOK MY MONEY AND SENT ME SOMETHING I CANNOT MAKE USE OF. THIS IS *****ING IN MY OPINION