Contract not cancelled

<p>Hi, I cancelled my contract on 28th of March</p> <p> </p> <p>My account was debited at the end of March (account paid in full)</p> <p>I was then debited in May, and again today. </p> <p>I phoned customer care, I was told that there was a request put through on the 28th of March to cancel but the line was not cancelled (They don't know why)</p> <p>I then phone the cancellations dept and was told that my account has been handed over. I then spoke to your legal dept and was told that there is now an invoice for the new period that needs to be paid (on top of the 2 debit orders that I have already unfairly paid) and that they cannot do anything until the new debit order shows in their account. </p> <p>How can I cancel my line? Will i get refunded for these amounts?</p>