I had real bad experience with Clay. They charged me INR 10000/- for proposed plan of INR 2000/- that too without issuing bill. Travelled to US and took a calling+ Data pack. Inspite of mentioning which city I am travelling, the voice coverage was poor and Data was not connecting on cell phone at all. On top of it, the pack I took was for INR 1999/- but since I had share my Credit card details trusting Clay, they charged me INR 5000/- twice i.e. INR 10000/- that too without even sending me my bill for which I actually used.
On talking to them and writing emails, there is no response on same.
Please dont use Clay and if you use, dont share your Credit card details at all. Clay Telecom can easily misuse your Credit card details.