[Resolved]  Vodafone India — port request message is not able to send

Address:

Hyderabad, Andhra Pradesh, 500096

I'm getting error 'message not sent' and with some error code. While i'm trying to send port request message to 1900. Why the message is not sending. Although im having enough balance to send text messages.
Why my number is restricted from porting. I fed up with the worst services of vodafone. I didn't have signal, every time signal goes off. No network coverage no bandwidth.