CenturyLink Invasive Refund Policy Denver CO

After one late payment over a year ago (that I then paid via my credit card), I setup an automatic bill pay via my bank. Due to smaller than normal bills, I have a credit on my account of nearly $900. I called CenturyLink to get a refund. In order to do so, they have a policy whereby I have to provide them with my methods of payment for an undisclosed amount of time. Not just the methods of payment, but the company name, contact information, and all my account information.

Therefore, in order to get back money that has cleared both my bank and their own, has been credited to my account, and is legally mine: I have to give them my bank and credit card name/phone numbers, account numbers, bank routing number, and authority to contact both companies to discuss my financials. I view this as an unwarranted invasion of privacy.

I spoke with seven different representatives (two of which listened to part of my reason for calling and transferred me without a word), and the consensus was "It's policy, we can't do anything." When told there is absolutely no other way to get my refund, I replied that there was one other way - closing my account. The representative told me (paraphrasing) to please close the account so they could be done with me.