I have been using LinkedIn basic version for more than a 3 years, recently I tried using the one month free "premium", it asked me to enter my card details to register for premium membership, and if I did not cancel membership before one month , app will start deducting ₹; 1400/month from my card, I entered my card details and activated the free "premium", I managed to cancel membership before one month but my card details where stored in the app, I tried to delete it but it was showing error, try again. The app does not give any remainder before the trial expires. There is no contact or customer care service support for India, even though there is a option to remove card, it is not responding. I am worried that it may be misused. I suggest never give your card details.