Scammers

OMG, i should have checked this website before i ordered anything from Hachette, they are really cheaters. initially it was £1.99 per month and after about 6 issues all of a sudden it went up to £11.99, having no received any issues they are sending letter to me to pay and if not the matter will be passed to a debt collection agency, i tried to contact them via email so many times, but there was no reply back from them. tried their 0871 premium number a few times and no one seems to talk but its connecting and i was charged 0.18/ minute, i was wondering if i can take them to court.