[Resolved]  Vodafone — i am not able to send messages from my vodafone number

from last two days i am not able to send any msgs toh any local and std numbers from my vodafone number.
i can recieve msgs and i can also make and recieve calls.
more then 10 times i complained abt this problem to vodafone customer care and i tried every thing they had aksed me to do but still i am unable to send msgs.when i send msg from my cell the error msg comes to me is that "meassage sending failed and no network support for messages. i had already refreshed the sender number in msg settings and all other optinos .
i put my frnds sim on my cell and then i can send msg from that number it puery means that there is no problem in my set.this problem is from vodafone network.
now when i try to call vodafone customer care, they do not connect me to the executive. plzzz cure this problem soon.