Air cooler bought from makro

I bought an air cooler from makro online because i live near upington and we dont have an makro in the area. They said delivery wil be on 2 August, its the 3rd of August today but no delivery. During the week i received an sms saying that my item was given to the courier and i received a waybill number. Just to find out that the courier service tried to pick uo the item from makro 4 times but the item was not ready for pick up. I have send them two mails, no response. Why does makro lie the item is with the courier while they still have it.