Vodafone India — not able to send message when i am giving port out request.

Since last 15 days i am trying to opt for port out on my vodafone number. But always i get "can't send message with vodafone in - error 10". I called customer care and he told me to check my sms centre number. I found it correct. The point to note is that i get error only when i message to 1900, rest all message to other numbers are fine.

I was already disappointed with the decorating network and call drop of vodafone now by doing this they have firmed my disappointment.

My message format port 9* to 1900. Kindly resolve this issue soon. You can't hold your customer base like this. Very disheartening.