First and the last experience for sure --- I was traveling to Singapore for work and got a clay sim card from office itself. For once I was very happy that I wouldn’t have to be on a prepaid sim that I would have to purchase from there and all that process. I was all wrong. I would have been in a much better place had I bought a prepaid sim card. Atleast the costs would be in control. The network wasn’t great at all. It was only ok and when I came back I was asked as to why my bill was 17 grand for only 6 days. Luckily I had the call logs and when they cross checked the bill, we realized that it was all incorrect and inflated. The actual amount was not even more than 7K, for which they were showing 17,000/- With this and the over all feedback, clay sim cards are definitely banned from our company atleast and they are definitely not even worth that much.