It appears you can ONLY phone them here is the Match.com dating subscription cancellation telephone number: 0800 368 5856 (This 0800 is now invalid and dead!)
UPDATED MATCH.COM CANCELLATION PHONE NUMBER:
MATCH.COM HAVE CHANGED THEIR CANCELLATION PHONE NUMBER TO FURTHER CONFUSE THE PROCESS OF CANCELLING YOUR MATCH.COM SUBSCRIPTION!
MATCH.COM PHONE NUMBER FOR CANCELLING YOUR ACCOUNT:
BEFORE you delete your match.com account you first need to cancel your MATCH.com subscription:
For MATCH.COM call on 020 305 96 492 OR FOR matchaffinity.com YOU NEED TO USE THIS NUMBER: 020 305 96 493
The above number is only open during office hours now, as opposed to the previous 24/7 telephone number.
I’ve reviewed their service and apparent deceptive practices in an earlier blog post. Click on this link to read it