Cance; my AVG subscription

I wish to cancel my AVG Anti Track subscription. However, the subscription page does not give any option to do so and the number on the AVG Contact Support page does not ring through to anybody. If I do not get my subscription cancelled, I will be in contact with the UK Ombadsman and anyone else who can help. I do not understand how you can post a phone number that does not work and how you cannot give a customer the option of cancelling a subscription?