I tried calling and just as you said they won't combine 2 $100 gift cards. And yes they are all from India. How annoying.
Any other ideas out there?
1) If you can spend it as is, that's the most straightforward way.
2) Assuming you can't (if you could you would probably not be asking) are you willing to lose part of the face value to cash out?
3) if you can spend it easily, but find $100 cards to small to be practical, order a larger one, say, $500, spend whatevernyou want, then consolidate the $100 cards on the $500 dollar card, bearing in mind that the $500 card can never hold more than $500.
Do any of the above work for you?
Edit: You should be able to use them on paypal, but IIRC they have a 16 card limit, and I don't know how often you can replace cards. Probably as a fraud precaution. But for 4 cards, it may work.