Excel instruments
Balance account

I am a vodafone user .my account balance was Rs.35.40 dated-19/01 at 8:30pm . when checked my account balance at 9:00pm on same date it goes down to Rs. -1.18.I make only one 1 minute duration STD call between this period. I want to know how can is this possible?

Company: Excel instruments
Country: India

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