Wonga has no customer service whatsoever

I must say that Wonga has by far the worst customer service. I have sent them 4 emails in the last 2 days requesting for a paid up letter with no response, they don't even have an automated response system to acknowledge receipt of your query. Wonga advised their customers that they are reachable on email and through their live chat on their website but there is no live chat. They don't respond to Facebook msgs either. I don't know why they don't have sense of urgency leaving us with no choice but to use platforms like hellopeter to get their attention!