Frustrated Client

I do not understand why I have to receive my products one by one. Now I have not received one product and I have to call Makro and hold for long until my line gets cut . I need to know where my one product because your tracker is not user friendly. I also have a second order which was confirmed and the money was debited but when I go back on the site a day later it says the product is sold out. Why does your site allow people to add items into their cart if they are supposedly sold out? and where to from here ?