Since you mentioned that you have the funds, I would just pay it all off and be done with it.
Wait the 3 months and see if the restriction will be lifted like promised.
Bouncing a payment with cap1 is the worst thing you can do in their eyes. They can charge off 50k and give you a new card within a year, but bounce a payment, and they could blacklist you. It sounds like you can pay them off, but still need those funds. I would just pay enough to meet your payment agreement and see what happens in 3 months. It may unrestrict, it could stay restricted for a bit, or they could close the card once paid off. If you can't afford to have those funds tied up, possibly permanently, don't pay it off.
I'm not sure what Brian meant by "Dont pay it off", probably referring to making a large lump payment.
Yeah, I had to read that twice. I agree, do what they say, make the payments as they instructed (not trying to just pay the whole thing off in one lump sum unless CapOne said you could- which doesn't sound like they did.)
Edit to add OP's stmt: advised to do this......."3 consecuive payments each over 3 months were made"
Kinda like the cops telling you if you confess to the murder you can go home and watch the Superbowl tonight. They are lying. They want their money. Even if they are lying you still owe them and your obligation is to pay them. I sure hope you don't pay in full, get your card shut down anyway and then tell everyone you are a victim.
It doesn't sound very promising if the only reason you are willing to pay is if they continue to allow you to charge on the card. You are now a risky customer.
Things will be better in 7 years.