poor service

I bought a stand mixer from homechoice. In less than four months it stopped working. I called them and they asked me to send it which I did.Homechoice never indicated whether or not they had received the mixer. They deposited money for postage. I had to call over 3weeks after and they told me that they are waiting for new stock in order to replace my gadget. To my surprise this afternoon I received a stand mixer that is far from being new. The least they could have done was to fix my mixer and send it back. There is a note stating that the mixer has been replaced. Homechoice has breached their side of the contract. A day missed in payment you will not get a peace as they call every minute. ...May I have a new stand mixer, why would they say an old not so clean gadget is new. This mixer has no whisk, how then is it new.