Exactly due to above (card blocking for expensive purchases) ICICI is not worth having a priority relationship or premium cards. Their super premium cards are piece of garbage.
I stick to HDFC Infinia or Axis or Amex for high value transactions.
That I am already doing... Pinnacle se 0 amb exclusive account.. usse exclusive master card(visa bhi liya tha lekin anda mila usme points)... Ab ho raha accumulate