Citibank Credit Card Complaint

Citibank Credit card department,

Other fee Illinois

Since i dont use my citi thankyou premier card much, i decided to downgrade to citi double cash back card to avoid the annual fee. I contacted citi and asked to downgrade my card. They did it and told me that they would remove the annual fee since there is no annual fee for the new card. After 1-2 weeks later, I found out that the fee is still there and called them again, asking to remove. They told me they would do it. Now, it has been more than a month, they still did not remove it yet. They made me have to pay it.