Hi everyone my father has a old credit card with no rewards from capital one that still has a 5.99% apr but through the upgade link he has the quicksilver card keeping the same apr and everything. My question is: Is there a risk that they'll raise the APR when they're in the mood? hasn't happened in 12 years yet...
@moonkey1234wrote:Hi everyone my father has a old credit card with no rewards from capital one that still has a 5.99% apr but through the upgade link he has the quicksilver card keeping the same apr and everything. My question is: Is there a risk that they'll raise the APR when they're in the mood? hasn't happened in 12 years yet...
I've never seen Capital One change an APR due to a PC; if the APR is going to change it will change regardless of the rewards the card gets/doesn't get.
I personally would jump on the chance to have a Quicksilver at 5.99%... that's quite a sweet deal! 
Sounds good but don't want him to kill me lol.
@moonkey1234wrote:
Sounds good but don't want him to kill me lol.
If it will make him feel better, have him call and talk to a supervisor.
Capital One is usually adamant that APRs can't be changed at all (unless it's variable to begin with and there's a Fed change, of course). To show how difficult is is, some have gone to the EO (Executive Office) to request reductions with very limited success (and none recent that I can recall). The APR is said to be tied to the contract that governs the individual account and is independent of rewards, or so I was told once.
Another option is to simply let your father be happy with what he has... 5.99% is good in its own right, and sometimes the angst just isn't worth it. If he wants to earn rewards he can do so with another card, and keep the 5.99% Capital One for special occasions when he needs to carry a balance. 
Just my 2¢. 