Citibank Credit Card Complaint

Citibank Credit card department,

Credit card protection / Debt protection Oregon

I reported an unauthorized charge on my credit card with Citi bank. A charge was made that was not expected. The charge was made at a - car rental. I was offered a free upgrade, only to find that that it was not free, but instead charged $240.00 for this upgrade. When - had me sign they gave me a PDA without a total on the screen, and the salesman said it was an agreement for the car rental. Nowhere was it visible that there would be an additional charge.