Vodafone India — Unauthorized deduction of Rs 99/-

got a call from the no [protected], claiming the vodafone customer care and for agreeing to refund the amount.I am told from the customer care that the amount cannot be refunded to my vodafone account but to my bank account only and i m asked for my bank details:-acct. no, debitcard no, expiry date, ccvno.
why in this world anyone needs all these details to just transfer amount to someones account(whatever the business reason be it).

Vodafone, could you please authorize this is a call from the vodafone customercare..as i strongly suspect this like a fraudulent call.
If the above is not a fraudulent call, please be informed that account details cannot be shared & i m requesting you to pls refund the amount to my vodafone account itslef

Abhai Singh: I am existing customer of Vodafone since last 7-8 years. Since last few months Vodafone is cheating with the customers. For me they did Unauthorized deduction of Rs 99/- for dnld-deals_mYDALA_99-MYDALA twice in a month. If I want to complain in customer care, there is no way to reach them. One more problem I am facing now a days, they asked to activate STD pack, I activated . Generally they are charging 40 paise/min but in long call 3-4 times they are charging full rate. There is no way to complain in Vodafone customer care. Now only one option is with me, to change the operator. Because VODAFONE wants to earn money by only fraud.