Clay International Sim Cards aren’t reliable at all… We had requested for a clay sim for London. Infact a lot of my friends weren’t in favopur of us using their services, but still we thought of giving it a shot thinking it won’t be as bad as our international roaming bills that we pay. The sales guy Rahul was very smart in selling us a plan saying that it will infact help us save on all our calling rates especially if we were calling mostly in India. I have to say, it was the most useless service that I have ever used in my existence. Their call rates were more expensive than my regular Vodafone rates, plus almost 5 times more expensive than picking up a local sim from there. The network was insignificant most of the times and the call would drop on regular intervals. It was a headache using their service honestly. Never using them ever again.