I have applied for EEA2 Residence card in 20 december 2011. I received my COA on 25 January. I haven't hear anything since after from Home office. Is this normal that they take full 6 months to decide application? Because I saw almost everyone is receiving their RC in 4 to 5 months maximum. Shall I ring Home office just to push them? I know it wont change anything but I am little bit worry as this waiting is killing me

thanks