Barclays PLC Credit Card Complaint

Barclays PLC Credit card department,

Rewards Colorado

I signed up for a Frontier Airlines - - through Barclay Card -/-/2015 for a promotional offer of - frequent flyer miles. I paid the required annual fee and met the purchase requirements of the offer. Over several months I contacted Barclay Card regarding the miles. It was acknowledged that I had met the requirements of the offer. I was told several times to expect the miles to post to my account. On -/-/- I was again told that the miles would post to my Frontier account within 30 days of a letter posted to me dated -/-/-. They still have not posted and today I closed my Barclay Card. I requested that the annual fee be returned as I was not provided the - miles. I was told by a supervisor that that was not possible.