cancel my mobile subscription

Hi, I want cancel my subscription I’m living in other country now, and I just checked and my contract is for two years (thing that I never knew the guy who sold me the subscription never told me that would be for two years, he told me one, because I was going to be only one year in the Netherlands, and I don’t speak Dutch so I never read  the contract) now it’s impossible to contact someone by chat and I really want cancel my contract, besides I’m super angry for the 2 years contract.