Cancellations - Never Get Through

I had two contracts with Autopage. When I cancelled the first one, I had exactly the same problem. You phone for NEW contracts, you get attended to in SECONDS. Try cancel a contract. 25 minutes and still no answer. Eventually I got through after over 30 minutes of waiting. So having moved onto Pay as you Go with my first contract, I now want to cancel my second one. Guess what? After 25 minutes of waiting, I ran out of airtime. I'm guessing they must have a big counter on their wall. Every time someone doesn't cancel a contract because their call doesn't get answered a canon shot sound is made and the number increases by 1 on their counter, and everyone (or should I say both people?) in the call centre clap hands.