Truworths bullies and *******

I went to purchase a phone at truworths festival mall with card no ********** ********** 0 and I asked them if the phone can do smart mirroring and they said yes, only to find that the phone doesn't do smart mirroring and when I return the phone back they refused to take it. I feel like im being sold something that I don't want. Now I have to pay for something that I don't need. I feel like im being bul****.