BSNL — GPRS18 plan not activating

Address:

Thiruvananthapuram, Kerala

I came to know form BSNL CC that they provide a GPRS plan of RS 18 for unlimited GPRS usage per day. To Activate this plan they ask to sent SMS with format GPRS 18 to 53733. But when i sent sms to 53733 i get a immediate relay the format is wrong. Again i try other format GPRS18 then also i get same replay. Then i try to contact Customer care executive but i don’t know what is the problem their error or network busy i am not able to talk to CC executive. One day i try to contact CC from morning to noon at last i get CC executive and he gave me same sms format then he take a complaint. But till now i did not get any response or plan not yet activated.