No communication/Rude/Call gets cut off

I placed my order on the 15 July 2015 and the delivery date said 5-7 working days. Today is day 6 and i haven't received anything or any sort of communication that it is out of stock NOTHING! Even when i ordered it, it never said it was out of stock! so I called this morning only to find out that a email was sent to me saying that the delivery will take place on the 28 July 2015, then the lady checked and no on there system it says the 10 August 2015. I was not notified about this until the phone cal which i explained to the lady, she then said i should hold to find out from the ordering department, i held for about 7 mins and the call got cut. So i called again and spoke to Robin who told me the same thing, she then did the same thing only this time i didn't get cut off. She then said she cant get hold of the ordering department, at this stage I'm so angry i say to her well then i might as well cancel the order so she said well let me cancel it for you then not even apologizing so i said please let the ordering department call me! So she said she would and send me an email! I want someone to get to the bottom of this and i would like my order in this week! I always buy from you!