I closed my Citi Thank You Premier Credit card account XX/XX/2019. While closing my credit card account I was NOT told that the reward points would expire within 60 days of closing the card. As a consequence I lost over 50,000 ThankYou reward points. 

I called their customer service but they would not reinstate the points. I am quite certain that they did not inform me that the points would expire so I would like to get them back.