[Resolved]  Tata DoCoMo SIM Card GSM Service — they are not allow me to go another network

Address:

Kanyakumari, Tamil Nadu

Respected sir/madam,

i am (m.maria jelucus raja) using tata docomo sim card network in my cell phone, i have to change my network from tata docomo to idea network. if i need to change network i have to submit mobile number portability code (MNP) from the existing network. then i send an request message to "1900" by typing "PORT<SPACE><MY MOBILE NO>" but i unable to send that message only other all messages can send by my number.
in may 9th i contacted costumer care and told such kind of error i having, then they gave an MNP number TT533822. my request not send from my no at the same time i don't know how they gave me that number. then i approach the idea network and made a request to change network. but they canceled my request for the reason of the MNP code were wrong.
from that day onwards i unable to contact customer care from my number several times i called from another number but they never gave me any solution,
please help me to resolve the problem. and i were waste lot money and time for this i need loss of pay.