They wanted me to know I owe them $74.10. I received that letter instead a final bill confirming I canceled my account on June 13. I was waiting until I got my final bill to just pay them one final time and be done with them.

Long answer, the reason I only want to pay one final time is because it's an old MCI long distance account, Verizon bought them about 5 years ago and it was a shitshow and hasn't changed one bit. They even still have the same recording from 5 years ago saying they were bought by Verizon. I can't pay my bill or manage my account online, my particular account doesn't work with that for some arcane reason and they aren't doing new accounts. Talking to rep usually takes 15-30 minutes on hold, if their phone system doesn't hang up on me. I was able to auto-pay by credit card for years but then I got a new card and their system to accept a new credit card was broken for weeks and every time I called I had to wait on hold for 15-30 minutes only to be told it's still broken. They let you pay by card over the phone but then charge you a $5 fee to do that. Still better than writing a check, I hate checks. I tried my bank's billpay but MCI/Verizon didn't process the payments and sent me late notices, so I gave up on that after 2-3 months. So yeah they are a ridiculous company.