No delivery of goods

Hello Peter. On the 16th Jan 2016, I made a prepayment for a 3 piece stove to be collected in Makro Polokwane. Before making payment, I received confirmation that the stove was in stock and I communicated that my brother will be fetching the stove on Saturday the 22nd Jan. when my brother went to collect on the 22nd Jan, he was told that the units were out of stock (even though I checked before-hand that they had the unit). They then told him that they will deliver the stove on Wedsnesday the 26th jan. The stove was still not delivered by the first week of feb. when I followed-up, I was told that the stove will be delivered on Saturday the 6th Feb. today is Sunday the 7th of Feb and there's still no stove and no communication from Makro. This is completely unacceptable, Peter please help.