Terrible customer service!

I've tried to cancel my account for the last 3 months running, sending email notification with the 30 days notice, yet Neotel keeps charging me at the end of every month.<br> <br> Trying to get hold of the customer service department is also useless as you wait at least 40min before getting cut off.<br> <br> I've email their customer service & complaints division, but all you get is an automated email response saying they'll contact you within 3 days, but then no one does.<br> <br> Terrible customer service all round!