NOT+PUBLIC+OPINION+IT+IS+A+COMPLAIN+I+am+complaining+not+opinion+please+my+number+is+07039330400+on+Monday+morning+when+I+woke+up+my+sim+read+invalid+sim+card+I+restart+my+phone+it+read+sim+registration+failed+and+I+had+registered%2c+I+called+your+customer+care+it+rang+till+my+phone+battery+run+down+nobody+pick+my+call%2c+please+help+out+I+am+expecting+calls+++THANKS