Disappointed

I bought a cot & on their website it said if you order it with a cot bed you’ll receive a free mink blanket, it’s been over a month and I haven’t received the mink blanket, I called to enquirer and they said they can see on their system & that I would receive the blanket but till this date I have received it so I’m confused cause it seems like I’m not going to receive it and if that the case their adverts are ********** because I got interested to buy the cot and cot bed when I saw the free blank.