Capital One Credit Card Complaint

Capital One Credit card department,

Advertising and marketing California

I was contacted my someone from capital one just as my o % promo period was ending, He told me that because i make more then the minimum monthly payments and as long as continue to make my payment on time that they were going to extend the o % promo to me as well as raise my credit limit. I was skeptical so afterwards i call customer support to confirm this and they informed me that i was good to go, As lone as i do n't do cash advance. Well not exactly i go paperless and i just reviewed my account on line and im being charged 23 % interest now.