They are bombarding all my phone numbers (ending with 3303, 5667, and 4171) with spam messages deliberately so that I will subscribe to their Call Filter service and when I did, I asked them on Live Chat as to how to use it. That (expletive) exec named Jacob tells me that whether it is a smartphone or a feature phone, I would have to use the number screening feature on the phone. He then tells me that there is no other way except using the call filter feature on my phone. I told him that when my phone does that job for free, why should I pay these thugs at Vodafone India INR 99 per month? Even though my phone can filter only up to 10 spam messages, it is still better than paying these thieves. I realized my folly only too late. They do not even refund the customers’ money. I started getting a lot of new spam that never bombarded my smartphone earlier. I wish I could use foul language here but I know it will be filtered by this website. Otherwise, I would have used it. 99 INR gone down the drain after trusting these dishonest people. I am being harassed with spam calls and marketing messages (unsolicited) myself even though I registered several times for full DND and all they did was kept apologizing to me and their Call Filter service is yet another Indian Ponzi scheme. If all the customers of India get together and file on big complaint or petition and sign it, maybe Vodafone will be sent packing out of India.