Really unprofessional and useless services by clay telecom- I had placed an order online to buy a clay sim for Europe and turned out that they’d sent me a SIM card that never worked here in India as well. Since I wanted to sure if the sim worked at all, I tried using it here in Hyderabad but no signals. I had to call the customer care asking them to replace the sim on an urgent basis which according to them took 2 days(that’s their definition of urgent).
Nevertheless their online buying for data is also quite messed up. I could barely get through to buying an additional data for the European number. And again no help from their customer services! Deciding to use clay sims turned out to be more painful than convenience. Really bad.