Vodafone India — negative balance on vodafone

I have been check the balance via myvodafone website. I found that is negative balance as 114 so I try to recharge as 569. After that the balance is still negative. In next 2 days I try to recharge again with 509 but the current balance is still negative again. I need to know how can it be 0 balance. Can you set the balance into 0? Am I already lost my money? How can I got my money back? The mobile number is [protected].