I went on a vacation to Singapore and used a Clay sim card to call home. It was a headache to use their sim card. Firstly, very poor network. Like hardly there was any network on my phone. Secondly, they have over charged me, and that too which doesn’t follow the plan that I chose to use.! The bill includes calls which I have not even made! I got billed for 9756/- rs for calls I didn’t make, for plan that I didn’t choose and for network that wasn’t there. This is a horrible company and honestly would never recommend Clay Sim cards to anyone.