Vodafone India — outgoing calls are blocked

Address:

Raigad, Maharashtra, 410209

I have 840rs in my prepaid wallet but I am unable to make outgoing calls I have called the customer care for the same they told me that you have to recharge minimum of 35rs as a validity pack that comes with 28 days validity,

But why should I have recharge for 35 rs as I have 840 rs as my prepaid balance,

Kindly start my outgoing calls as soon as possible or else refund my 84 rs as this is huge amount for me

Kindly solve my issue as soon as possible