Startup Essentials; A-1 Leasing, LLC Still scamming after all these years... Now what do I do? Grand Rapids, Michigan

Despite the class action suit, I completed my 48 month contract with A-1 Leasing but failed to return the equipment and no longer have it.  I paid for an additional 7 months and have been told that the lease was automatically renewed in November of 2010.  I was not notified. 

I am now being told that I cannot cancell the lease unless I buy the equipment for $637.30 after I have already paid $6,448.80 and have received NOTHING!  I admit that I've been naieve and stupid to not cancell this sooner but what can I do now?

I've stopped payment at the bank but was told that in order to assure there are no more payments made I should change account numbers - a major problem since all automatic withdrawals are from that account.

I intend to contact all 3 credit bureaus today.  I'd appreciate any advise available.