Disappointed by homechoice service and I'm very angry

At first it was good to me but as from last year October things changed..... I ordered a television on which I did not receive they say it was received buy a third part on my behalf when I as the name of that person they said is Rose lekwa I do not know anyone with that name nor the surname so they say I must do the affidavit and state that I dd that then they sent a msg saying they received it they are busy with the evaluation of the matter.... After some time they said they cant see the document I must resend the affidavit and email it I dd that I even sent the fax still no assistant from the I've been doing that since from last year then in June I sent the affidavit again I was given another email to send the affidavit to I dd that up until now no assistance from them but on my statement it keeps on showing and I'm not paying for it and the is an interest on that amount yet they are not helping me at all