Checking or savings account — CITIBANK, N.A. (OR)

Banking errors. I received a promotion from Citibank stating if I open a new checking account and make deposits and use my ATM card within 90 days of opening the account, I will receive XXXX air miles WITHIN 30 days of meeting these requirements. I met these requirements as acknowledged by Citbank, but they will not honor the within 30 days clause and tell me that they will make it 90 days. I have escalated this showing them the promotion i was offered. They will NOT honor their own promotion. I have travel plans that I was counting on these airmiles and Citibank decides to change their own rules as they desire.