Shocking, unprofessional service!

I am not happy with the service I received, actually I am appalled! Firstly, it took over a week to process my things as there was apparently an issue with confirmation of employment with my employer. Fair enough, issue resolved. Now I can't have my things delivered because apparently the warehouse does not have stock. Firstly, I was told delivery would take 2-3 working days, which I was okay with. Later, I'm told delivery for small items takes 7-14 working days. As if that wasn't enough, the story then changes to 'the warehouse doesn't have stock' ALL IN ONE DAY!!! Firstly, how is it my problem as a customer that the warehouse doesn't have stock? Why was my order processed if you knew you can't deliver on your promise? Why is the problem placed on my shoulders, requiring me to go out my way, running to a different store to pick up the 'supposed available goods.' What will happed to the delivery fee of R695.00 I was charged for 'large items' if I still have to fork out money from my own pocket to personally collect the goods from a different store? My total HP price has the delivery fee factored in, meaning that accumulates interest as well right? Are you going to adjust my total owed, minus delivery if I personally collect the items? I am truly appalled at your service, it's shocking! If the other stores have stock, why can't you arrange with them to have the goods delivered since you are under the same umbrella? Whatever happened to resolving customer queries first hand without inconveniencing them? I honestly did not think this whole deal would bring about so much stress in my life! This is unacceptable customer service!!!