Don't shop at Makro Online

I ordered a variety of drinks (cool drinks/beer/wine) online from Makro on the 2nd of May. I was told that delivery would be 2-5 days. A month later, almost 20% of the order (in value) has not been delivered. No-one at the call centre can provide a coherent response. My email's receive a response saying that they are "investigating". The rest of the order arrived in dribs and drabs making it difficult to monitor what has and hasn't been delivered. The bulk of the order arrived on the 8th of May, 6 days after the order was placed and too late for the function they were ordered for. Some basic items that reflected as available when I was ordering where not in fact in stock and I was notified of this a few days later.