Wrong delivery - rude service

I ordered a canvas from the @home online store. Upon delivery, I realized that they delivered the wrong item. I was delivered with a Lenovo laptop. As soon as I realized this, I phoned @home to tell them about this. They were not interested in my issue and told me to phone the delivery service. When I did this, I was told that they have no record of this happening and that there is nothing that they can do - very rudely as I might add. Not even thanking me for taking my time to phone them. Both @home and the delivery service didn't care about my canvas that I needed as I had guests visiting during that weekend. I had to make do with what I had. I then phoned them a couple of times. They are always rude and not understanding that this is an inconvenience to me. I'm sure most people will not even report this happening - I didn't even get a simple Thank you. They just phoned me back to ask to collect the laptop - after 4 weeks. I advised that I don't have it with me (as I cant leave it at work, it will surely be ******). I said we could arrange to do this tomorrow - and once again the lady was rude. Absolutely bad service and rude attitudes from the entire team. I did not expect this!