Terrible service!

I received a free contract with my phone upgrade two years ago, even though I didn't want it and tried to cancel it earlier. I was told I had to keep it until the end of the contract. I phoned in in April to cancel in June so I wouldn't be charged for the contract I don't want. In April I was told I can only phone in May to cancel in June. So I phoned today and was told they can only cancel in July! How does that work?! And if that wasn't bad enough, the person helping me laughed at me. He was rude and kept repeating the same sentence over and over, like I have all day to listen to him! The service is pathetic. I am so sorry I upgraded my main contract with them. They are so useless! The sms I received: your quotation has been processed 1- ********** ********** . Use the order number 1- ********** ********** .