ComEd Electric a Exelon Company Mismanagement of Billing Corrections Chicago, Illinois

I had complained to ComEd for years stating that I thought the usage amounts were too high on my newly built condo in the Cary Woods subdivision in Cary, Illinois.  They had not done anything to investigate the issue.  I moved to another state for work, but still kept the condo.  Over the past year when no one lived in the property, I noticed that the bills were still coming through with high usage.
Finally I thought to check out the meter number on my bill to the one on my physical meter.  The numbers did not match.  I then demanded to have someone check out the meter and make the corrections.  To my surprise, my meter was half the usage, almost the equivalance of $2,500 of over billing to me for the last 5 years.
After ComEd had a person come onsite to confirm that not only my condo was wrong, the entire building of 6 units were reversed.  When I asked if they were going to correct all of them, they said no!  Only if the property owner calls in to report for those units.  So, they would only correct my unit and the other unit that was mixed up.  They also stated that it was very likely that other meters in the subdivision were also mixed up, by they would not notify anyone about it.  (By the way, I have also notified my property management company to notify the entire subdivision for verification.)
Now it is 4 months later, and still no correction to my billing or reimbursement back to me has been made.  They keep saying that it should have been corrected 3 months ago, but now it will take 2 more weeks...each time.  I have now called them about 6 times for resolution.  I have escalated the issues numerous times, and no one will give me a direct number to call or any other contact to continue moving forward on resolving this issue.
As of today, I still can not get any manager or billing representative to call me back to correct their mistake and pay me back.  So I am now notifying everyone of their illegal business practices and recommending that everyone verify their meters and to be aware of the hassles you will receive from this monopoly!