Chicago Business VoIP vs Cox Communications

I was dumb enough to fall for the bundle from Cox for TV, Internet, and Phone. I did explain at the time that I only needed basic phone service with NO long distance, no added features, and a minimum charge for the phone service. The first month bill came in with charges for both long distance and collect calls. I live alone and know I did not place the calls or accept any collect calls. Checking the bill ALL of the long distance calls were operater assisted calls. I called Cox and was told by the CSR that they would check to find out why the blocks weren't working, then transferred to billing where the calls were credited back to my account. Second month: More charges for both long distance and collect calls! Same proceedure, called customer service and was told that she would escalate the issue to tech support to find out why the blocks were not working then another transfer to billing (with the long hold time, of course) where I was issued a credit. Third month: $300 dollars in long distance and collect calls! Again, called Customer Service where they will send the issue to tech support to find out why the blocks weren't working, and another transfer to billing where I was told that they can't block those calls AND that they don't issue credit for them! I called their corporate office in Atlanta and spoke to the problem resolution people who told me: They CAN block those calls and will find out why the block isn't working. They DID issue a credit for the calls. THEN they explained that if you have an answering machine and it picks up you WILL be charged for a collect call, even though you didn't actually answer the phone! They never did explain the operated assisted long distance calls though, or why their system isn't blocking them!