Very disappointed in service received

I am very disappointed with the service i received at the Randburg branch. I was called this morning to be informed that my mattress will be delivered today, but it is not possible to even provide me with an approximate time. At 14:45 i called them to inquire and i was told that if they called me this morning, they will definitely deliver today. At 16:30 i called again to find out why the driver has still not contacted me and the consultant said that they will call me back now. At 16:55 i called again, only to find out that when they wanted to load the mattress this morning for delivery, it was in a bad condition and they do not have any stock. Firstly, the consultant should have checked before selling a mattress to me with the promise to deliver the next day. Secondly, i should have been informed immediately when the mattress were not going to be delivered today and now i am stuck without a mattress, after waiting at home all day. This is really bad service and very disappointing from a supplier who is supposed to have a very good service record.