I received a letter from this company alleging I owed back fees, a very large amount, even though my account statement shows no balance, and even though I have been paying regular fees to them for many years. Never have I received any indication the fees were not paid, and checks from my bank were apparently applied to the account to offset any posted fees, reflecting an account balance of zero as amount owed.
I was never notified of any additional fees, or billed for them, and this is the first I ever received such notification, and no company I have ever dealt with has tried to collect such a large amount without prior notifications or bills, other than some small amount that was either promptly corrected or paid.
Also, I tried to call the company but the person answering the phone hung up on me.