. >> jamie diamond himself said if you run a restaurant and you can't charge for the soda, the burgers are going to get a lot more expensive. >> reporter: in other words, making up for lost profits elsewhere. the head of chase used that burger analogy after reporting nearly $5 billion in profits in the last quarter alone. and we wondered, if the banks are making that kind of money, why do they need to raise rates at all? a lot of folks are looking at these numbers and saying the banks found a way around these new rules. >> no, no, no, the banks are responding to the new rules. >> reporter: the banking lobbyists who fight for the banks in washington told us today this is not about profits. so if it's not about making money, then why hike the rates? >> well, we have to cover the costs. you have to cover the operating costs. >> reporter: operating costs and delinquent accounts they say. customers told us today they've had it, charging less and paying balances more quickly. >> every time i pay in full. so they don't charge me like extra fees. >> reporter: you don't take the chance? >> i'm