Vodafone India — rental charge of international roaming

I have been charged for international roaming on my vodafone number.in the month of december 2017 as well i was charged without even activating the same and i was refunded the amount, however once again i have been charged.
As for vodafone under below circumstances we get charged.

{activation: please note that rs.99/- gets debited from your balance for activation of international roaming service if you initiate any of the below stated activities from your number.

1) attempt of outgoing call/ miss call

2) receive incoming call

3) send an outgoing sms

4) gprs usage

We wish to inform you that incoming calls will be chargeable in international roaming. Charges will be applicable as per country.}

As well i have been told in-order to avoid it in the future to send the below message.
{can ir to 144 (Toll free)}

After sending the above message and as well not using my vodafone number internationally, i have been charged rental. I have my own local international number and so i do not have a reason to use vodafone number.

This has been repeated and also now this is pending since 4 days and not received any response from vodafone.