are usually determined by giving the credit card holder a rate
of some arbitrary number (usually based on credit
history/score) PLUS the variable rate, which depends on
long-term U.S. interest rates. Usually, the arbitrary number
is what the card holder "agrees to" when applying
for the card and should remain the same, barring poor payment
history (if they try to change it EVEN THOUGH you have not
payed late/missed a payment), do as the originator of this
thread does and contact them... usually a threat of
transferring your balance to another card/bank will be
sufficient to rein in these types of random increases). Since
long-term U.S. interest rates are on the increase, so do the
credit card rates rise in parallel. This has nothing to do
with "*" in office. If anything, the worst thing
these credit card companies do is charge exorbitant fees for
late payments/over-the-limit fees. It makes no sense that an
individual is two days late paying his minimum payment of $25
and then gets charged $35 for the "late fee" (140%
penalty). Naturally, this should cap out at some percentage
of the payment that is owed and received late. Again, these
credit card policies have been largely unchanged for 20 or
more years.