unfair instalment of a comforter set i did no receive

I placed an order of a comforter set on the 07/09/2017 at homechoice and the said order was not delivered. I received numerous calls from homechoice demanding payment for the comforter set. I disputed receiving the comforter set and they advised that I must send them an affidavit which I did on the 13/10/2017 and to date they have not stopped demanding payment from me. Homechoice advised that the comforter set was delivered to her and the person who signed for the delivery is Zandile whom is unknown to me.