I suggest that you get some GOOD financial counseling and education BEFORE you go the route of bankruptcy for no reason.
You are either over-reacting here, or you were in very serious financial trouble before the Capital One rate hike.
I am speaking from experience. I have been there, on BOTH sides of this issue.
More to the story here, I'm sure.
Lets look at this from a purely financial, dollars and cents perspective.
Lets say you had a $5000 balance on that credit card in which you want to pay off in 5 years [60 months] based on a 3% monthly minimum of principal. Amortized as a loan just for interest cost illustration.
Your minimum monthly payment at 11%:
@ $150.00 principal +$45.90interest=$195.90/mo total payment to start
Your monthly payment at 29%:
@ $150.00 principal + 120.83 interest = $270.83/mo total payment to start
SO...You are going to file bankruptcy over $74.93 per month?????
Time for a reality check.
Did you try calling them and asking for a hardship modification, or did you just stop paying?
FYI...No credit card company will reduce your interest rate until you are at least 3 months behind. But they WILL.
It looks like you just gave up here, and are a bit of a drama queen.
How big was the credit card balance?? Were your payments on time when they were at 11%? Were they just minimum payments? [Obviously they were].
Get a grip.