Not so low cost for no service

<p>I have sent 4 e-mails to Mango to request a cancellation on a flight, as well as to advise them that I won't have my credit card available when flying with them on another, and to ask what else I can do - they just don't reply.</p> <p> </p> <p>It's been more than a month since my last e-mail.</p>