[Resolved]  Vodafone India — unable to send text message to 1900

It seems that i am unable to send texts to 1900 with my vodafone number. It works fine when i am texting other numbers. I suspect that this service has been blocked on my number. Vodafone doesn't allow me to send messages to 1900

I have been trying this from last few days and have even tried to contact vodafone customer service but this hasn't been sorted out yet.

Also, vodafone has been incorrectly charging me in my bills over the last few months.