Incomplete goods were delivered

I bought a 17 piece Raika duvet set with Homechoice and I was told it will be delivered within 5 days, but that didn't happen. I was patient enough. 3 weeks later while I was in Cape Town (home is Pretoria) I received a call from a guy by the name Jack from RTT and told me he wants to deliver, I gave him directions and he went to my place and found my mom, he delivered a gift that I was given by homechoice but not my order. When I asked him telephonically, he told me he is just following the order as he found it. He said that is how they deliver, 1 box at a time, then I asked my mom to sign it. I called homechoice a spoke to a male consultant who told me the exact same story. The debit order went through, I received a message complementing and stating that my order is complete. I call the call center and spoke to Judy/Julie & Asanda, they informed that according to the system my order is complete, when I try to explain they say I must fill in a dispute form. I want to know why am I being reaped off? Why am I paying for something that I dont have.