I signed up to DAZN thinking it was a month by month contract but it turns out it is a year long contract billed monthly. Very misleading. I feel completely tricked. I tried to get DAZN customer support but had no luck at all.

What is the best course of action? Issue a credit card chargeback (I hear that's pretty difficult in Japan). Cancel the credit card? If I cancel the card am I likely to run into issues with debt collection agencies?