ICICI Prudential Life Insurance — change of address in policy document

Address:

700103

I have tried to edit (On line) the address of the policy icici prulife.com which is in the name of my wife by uploading the passport document as address proof but the same is not accepting i. E the address is not changed, though the same thing i have done in case of my policy (Following the same process) and which was successful (I. E the address is changed) i can not understand why it is happening in this case, please explain me and suggest me how i can changed the address on line.