I am holding Manhattan Platinum since more than 15 years. I hold other HDFC, ICICI, Axis,, HSBC, IDBI, IDFC LTF (mostly Platinum )credit cards and can tell that Manahattan does not have great offers and frequent offers.. I did not see any issue with customer support. With my goal of having any LTF credit card (no need to track annual fees of spend to get annual fee waived off) I noticed, ICICI, HDFC and Axis are good credit cards. Even to leverage early bird offers of Rupay credit card, I enjoyed Indian Bank, UBI, Canara Bank, PNB, BoB and Kotak. And had collected good cashback Now closed all Rupay CC except BoB as it gives cashback So Standard Chartered and HSBC Credit cards are not so great. Instead try SBI that has maximum offers on Amazon or even ICICI and HDFC