Wonga *****ing my money

Wonga deducted my last payment double a few days ago. I have been phoning out all my airtime to get this issue resolved, I was told my money would be payed back.... Its been 3 days and nothing. No one is coming back to me, I have now been deprived of almost 2500 of MY money, I lost work time phoning you, losing money since I'm on a commission structure and you don't give a damn about your client being inconvenienced to such an extent. Why should I suffer losses due to YOUR mistake and incompetency!!!!!!!?????? RIDICULOUS!!!!!!