Barclays Credit Card Complaint

Barclays Credit card department,

Closing/Cancelling account Washington

For several years I have been trying to pay off or at least get current with my Juniper Credit card ( owned by Barclay ). - card has been closed, but they continue to charge me interest. I have - other cards that have been more than helpful in that respect and I am slowly paying them off. When I ask for a similar deal they refuse. I have been through several short term hardship programs, that have been somewhat helpful, but have never brought my account current. After the last stint at short term hardship, I spoke to an account rep who was surprised that I was never offered a long term plan. I told her, it was never available to me, per their parameters. I asked her if my account was closed, she confirmed it was, I then asked why they are trying to charge me more that the Washington State limit of 12 %, she did not have an answer. I want to pay off my account, but they make it impossible with the interest they charge on top of late fees. I have written them a letter asking to be put on a plan with even monthly payments and no interest. Is there anything else I can do, besides filing for bankruptcy?