Builders Warehouse - Online order

I have ordered 2 x Big Jim Cooler Boxes (50L). One on the 9th December which I already received and the other one on the 10th December which I haven't received. I now try for 2 days calling the customer care number to find out when delivery will be but the most pathetic service I've ever received. Everyone told me that they will phone back within 2 hours but I never received any call back. Yesterday I phoned 3 times and today 2 times and I spoke to a Thembi lady at Builders New Market Mall Alberton who said she will find out and phone me back. Until now no phone call. I need this cooler box urgently as we are going away and I need it. I've order a lot online but this is the first time ever that I struggle so much with a company. I will never ever order or buy from Builders again. Can someone please urgently call me to let me know what is happening.