I am Airtel post pay customer,tried to port out a fortnight back but it was rejected and the reason that was give through sms was "upc rejected by donor".This really pissed me,I remember having put correct code on documents and also verified it through the dealer where all the documents were submitted.I really don't know what went wrong,must be a trick from airtel to prevent me from moving away.I want to port out but won't start it all over unless I know the exact reason why my previous request was rejected for this I have written numerous mails to customer care and airtel presence but till date no body written or called back.This is insane,poor and indifferent customer care,the very reason that is making me port out.121 has no clue about my problem,they say I will get a revert through mail but sadly that hasn't happened yet.I even posted my grievance on grahakseva but it seems airtel guys are so smart that they have made it look like a joke by saying I should mail them all the details which I have done repeatedly and they acknowledged it but nothing has been done to assuage my concern.I am with airtel for past 10 years and can vouch for their careless and lackadaisical attitude on all the matters but this mnp case takes the cake.You are a leading telecom operator and your conduct proves otherwise.Please give your valuable suggestions that may see me port out from airtel quickly.Thanks In advance.