I have recharged my tata docomo prepaid gsm with 1gb 3g data with 30days validity. But it seems worthless with no whatsapp working...I checked the APN on my cell and they are TATA.DOCOMO.DIVE.IN and TATA.DOCOMO.INTERNET. The INTERNET apn is useless to connect to internet and with DIVE.IN I CAN'T SEND OR RECEIVE ANY WHATSAPP MESSEGES. What is wrong with my cell or with the docomo internet???