American Express

American Express executive told me that the membership fee for the card is 5,000 and so I got interested and got the credit card and in first statement they charged 25000 as membership charges on which I contacted them and asked to cancle the card. After they told me that they will cancle it. I tried to contact them when I got the bill saying 33,247.33 as outstanding and they have cancled the card. Now what I should do?

My card no: 3769-325657-61004