I'm another customer having the same issue. Signed up for Asia roaming add on and got email confirmation before travel. Once I landed in India, I get text message saying I will be charged $18/day for roaming. Been sent around and around through the online support and can not reach a rep.
This is frustrating after a long trip. Coincidentally, I had no issues with the Europe add on just the day before!
Help me connect to a rep to sort this out.