Airtel — add on family

Address:

Bangalore, Karnataka, 560084

I have the worst exp with airtel they have no clue what they talking. I had prepaid sim and my husband is abroad so i went to airtel and told them i need to make this prepaid to postpaid and he is not here. They said you can add on to your plan. I got it added and he gets an sms saying call up airtel tomorrow activate the number and he cant do that coz it says no service. I am calling customer care saying he can't call up airtel ciz it shows no service then they saying he needs to be in blr. Now prepaid is deactivated nor is this working.
They have no clue what they talking. Airtel really sucks