Complaint sub-issue: Didn't receive terms that were advertised

XXXX   XXXX   XXXX  To Consumer Financial Protection Bureau, Sub : Citibank is not processing and honoring new account open promotional {$400.00} bonus amount Dear Sir/Madam, I applied for a new consumer checking account ( Citibank Checking Account number :  XXXX  ) in Citibank  XX/XX/XXXX  night online. The Citibank offered {$400.00} cash bonus who meet the following criteria.   -To qualify for a {$400.00} cash bonus, open a new consumer checking account in The Citibank account package by  XX/XX/XXXX .   -Within 30 days from the date you opened your new checking account, deposit {$15000.00} or more in new-to-Citibank founds into your new checking account.   -A minimum balance of {$15000.00} is required to be maintained in the new checking account for 30 consecutive calendar days following the date you made your qualifying deposit I have attached screen sho t of Citibank promotional offer  and step by step of my account applications.   My new consumer checking account was processed by Citibank on  XX/XX/XXXX  and I made a {$15000.00} deposit on  XXXX  which was actually processed by Citi on  XX/XX/XXXX .   I maintained {$15000.00} balance all the times. So on  XX/XX/XXXX , the requirement was met.   When I did not see {$400.00} cash bonus credited in my account, I called Citi customer service on  XX/XX/XXXX .   To my surprise,  Citibank said-The r equirement was met but {$400.00} cash bonus will be credited within 90 calendar days from the date requirement was met provided my account is  XXXX  tax certified.   Kindly note- Citibank has never disclosed this 90 days waiting period and Account tax certification on their promotion offer page.   I asked Citibank, what is the process for  XXXX  form submission. Citibank asked me to mail the  XXXX  form to their  XXXX   XXXX , SD office. Since I am in  XXXX , FL, there is no Citibank location here. Citibank also informed me they cant accept  XXXX  via FAX.   I was upset but I mailed  XXXX  next day and was just waiting.   After abou t 4 we eks around  XX/XX/XXXX , I called Citibank to check  XXXX  tax certification status. To my surprise Citibank told me that they have rejected my  XXXX  due to missing supporting documents and asked me to resend. When I asked them what is missing, Citibank did not answer my question. That time I was suspecting Citibank is just trying to find some excuse to dishonor my {$400.00} cash bonus.   Well, I mailed the  XXXX  for m again ( 2nd time ) o n  XX/XX/XXXX  and waited for a month. But no update fro m Citibank. When I called Citibank on o r about  XXXX ,  Citibank said  they have not received my 2nd  XXXX  and asked me to mail  XXXX  form again.   I was surprised and I was very mush sure Citibank is just lying to me. But I mailed the  XXXX  form again 3rd time on  XX/XX/XXXX  realizing there could be some issue with USPS delivery.   Well, I wait for more than a month, but no update from Citibank on my  XXXX  tax certification. I contacted Citibank customer service multiple times between  XX/XX/XXXX  and  XX/XX/XXXX , But overtime Citibank said they have not received my  XXXX  and I will not get my {$400.00} cash bonus unless  XXXX  receive and process my  XXXX    At the last, I mailed  XXXX  form 4th time on  XX/XX/XXXX  by USPS certified mail with tracking.   USPS tracking #  XXXX .   The tracking shows, Citibank received my  XXXX  on  XX/XX/XXXX .   I called Citibank on  XXXX / XXXX / XXXX  and provi ded USPS tracking #, Citibank said t hey dont have any information on my  XXXX  and it would take 10 days to process my  XXXX  once Citibank receive my  XXXX .   Well, I waited till  XX/XX/XXXX  but no update from Citibank regarding my  XXXX  tax certification.   I contacted Citibank multiple times between  XX/XX/XXXX  and  XX/XX/XXXX  and every time Citibank told me they dont have any update on my  XXXX  tax certification.   At this stage, I am highly suspicious that Citibank dont want to honor my {$400.00} promotion bonus and  XXXX  tax certification is just an excuse for them not to credit my {$400.00} promotion bonus.   For your kind review, I have attached a screen short of my USPS mail certified receipt and tracking details. The tracking clearly shows, Citibank received my  XXXX  on  XX/XX/XXXX .   In spite of that, Citibank is saying there is no information on my  XXXX  certification nor they have received it. How could it be possible? Citibank is just lying.   Hence, I request Consumer Financial Protection Bureau to step in and help with resolving the matter with Citibank and help me with getting my {$400.00} cash bonus at the earliest.   Thanking you.