Vodafone — Deactivation of FLASH SMS service

Address:

Karnataka

I am using Vadafone post paid since last two years. Vadafone suddenly activated the Flash SMS on my mobile 3 months back. I Called to customer care 20 times and sent 6 times. But till now my problem not resolved. When ever I call to them they are saying it will resolved in 4 hours. When ever i sending reply saying that they resolved the problem. But still i am getting the FLASH SMS's. It's irritating me. I don't know what wants to achieve by irritating the customers.