So bad... I had 14 days to think If I want to get ...

So bad... I had 14 days to think If I want to get a contract with them. Before this time was over I informed them that I dont want it. I sent 2 emails and called 2 times. They said that they will handle it. Well they did not... I got a bill for 250e, don't know for what and also a message from my old supplier that is a pity that I'm leaving them. Is it a joke ?! What do I have to do ??? Horrible communication, horrible company