Disgusting online service from Truworths!

I did an online purchase last week. I was promised delivery within 2-3 working days. I then received 2 messages to say that there would be a delay in my order due to high order volumes which already was frustrating. Now today I received a message to say that 16 of my items are no longer available which is yet another disappointment! Then when calling I was firstly given the run around only to be told 10 minutes later I needed to call the online department and then afterwards once at the right department was told that my order will be split into 2 deliveries which is highly inconvenient as I am now expected to go into Truworths twice to collect my order. I strongly feel that this is a terrible way to conduct business! I do a lot of online shopping and have never experienced such bad service!