The thing is, even 14% is a huge rate of interest. 32% should be criminalized, though there's probably something in the contract which says if you don't make timely payments, they will not give you the "optimal" 14% rate -- right?
Anyway, CCs are evil. Pay them off as soon as you can, and pay them off the month you incur the debt. If you've got money in the bank earning 5% and CC debt running 14%, you're losing money which you don't need to lose.