I recently took advantage of a 0% balance transfer offer on my Capital One card. My card had no balance on it prior to the transfer, so I thought it would be a good deal. After the transfer, it started accruing interest. I emailed the customer service on their website, and I got a response confirming I have 0% on balance transfers. That didn't answer my question, so I asked again why there is interest accruing when there is 0% interest. I got the exact same response, down to the letter. They didn't even read my email. Then I called them. A guy who spoke poor English did not have the answer. He tried to explain the interest was from past purchases which had long since been paid off. It still made no sense to me, so he tried to transfer me to someone else but in the process, he disconnected me. I emailed them again asking to please explain why my balance transfer is accruing interest. I got no reply for four days. Enraged, I just paid off the balance, and the very next day I got an email back saying there is no balance on my account so they don't know what I'm talking about. It's astonishing to even think about their complete disregard and reckless faulty advertising they provide their customers.