Why is it so hard to change name on my account

I was setup with a new Cox account.  Internet works and all.  That's fine.

Problem is, when I set it up over the phone, the customer service rep must have misheard me say my name.  So my name and bill are all under an incorrect name.

No biggie, I will call in and change it.  I just call in to the billing department.

Called in the first time, asked to have name changed.  Person on the phone seems to have done it.  A few days pass, but I check online, still shows the wrong name.  When I go to Cox.com, it says Welcome <WrongName>.  Check account, bill, etc.  Still wrong name.  

Call in again.  ask to have name changed yet again.  And again, person on phone seems to have done it.  And yet again, I go to cox.com, still shows wrong name.  But I go to my bill, and it shows my correct name.  (I don't know if my printed bill will show my correct name yet, as I don't have a new bill yet).  

But still, I have the incorrect name showing in various places.  

It is not a browser issue, I have used a new browser, cleared cache, cookies, etc.  

How can I get my name changed correctly, once and for all?