Wrong order and no free gift

I ordered a luggage set in February this year according to the catalogue I would get a free set after buying however, I only got one set, luckily I received my free set after contacting Homechoice. On the 3rd of July I ordered a 3 piece Tova set and again according to the advert it was a buy one get one free offer (different colour). The order took more than 3 weeks to be dispatched and I don't understand why because when I ordered it was on stock. Anyway, I finally received the order on the 5th of August only to find that the order was wrong and there was not even a free set. I contacted Homechoice and was told they don't have stock so they sent me that as an alternative, I asked why they sent it without notifying me and the consultant said he would investigate and get back to me on the 7th but never did. I called on the 7th and told them I don't want the order and was told I have to post it. It's a big box and when I went to the post office the fees were to much for me, I notified Homechoice on the 7th and have not received feedback. HC must please send someone to come collect the wrong order and deliver the correct order with the free gift as promised please or my money back.