Ancestry Unauthorized Charges are a Scam

After taking out a 'trial' subscription to Ancestry.com over 3 years ago, and cancelling it well before it ended (making a note of the cancellation confirmation number), I've just realised they're still billing me $29.95 every month! It is simply not acceptable for a company to repeat bill without sending renewal notices, and to say in their terms and conditions that registering for monthly billing gives them the right to your money indefinitely! Any legitimate online business lets its customers know exactly what they've signed up for, but Ancestry didn't sent me a single receipt, let alone confirm my subscription login details.
The only method of contact for customer complaints is by telephone - not an option for those of us who live in other time zones, so I've just emailed their support address, requesting my money be refunded within one month.
Should they fail to do so, I shall lodge Chargeback Requests with my bank for each disputed transaction. I'll post back and let you know how I get on.