We want to provide a rapid response to all our customers questions and all of the above options will guarantee you a quicker reply and resolution rather than if you email us. However if you still want to email us with a complaint, please use 
Unfortunately we cannot accept attachments to emails and the response time could be up to 10 days. We strongly recommend you use our online FAQ, Chat to us, Call us or if you need to send documents use our Webform in order to have your question answered promptly. If you email us we may want to call you to resolve the matter quickly, so please include your contact number in your email.