I applied on-line to Citibank for a Thankyou Preferred Master Card in late XXXX 2015, under an offer to receive XXXX bonus points by spending {$1500.00} within 3 months of the card account being opened., I received the master card in early XXXX, and I made a purchase of {$1700.00} on the card on XXXX XXXX, 2015. 
I did not receive the XXXX bonus points as was advertised. Upon inquiring on this, I was told that my account was opened through a solicitation which offered a {$100.00} XXXX gift card after completing {$100.00} in spending with XXXX within 3 months of card membership. 
I do not recall receiving this solicitation. In fact, it was the on-line offer for the XXXX bonus points which enticed me to open the Thankyou Preferred Citicard. This offer is still available on-line as of today. 
I was told by Citibank that I had to provide proof of having applied under this offer in order for them to do anything. I can not do this as I did not print a copy of the on-line application I completed. Given that I specifically applied for the Thankyou Preferred card, despite there being multiple offers for other Citibank cards, I certainly did not anticipate that they would later refuse to credit the XXXX bonus points once I completed the terms of the promotional offer. 
Why would I have spent {$1700.00} soon after the credit card being opened, and nothing else since? 
All Citibank has to do is confirm that the XXXX bonus point offer was in effect when I applied in late XXXX 2015. For them to refuse to credit the bonus points and instead tell me that my account was opened under a different offer is incorrect, and guilty of false advertising. 
I hope you can assist me in resolving this matter. 
Thank you. 
