Default Z2 not repairable? Atleast in India?

I have been researching about z2 on internet forums for a while as z2 is one of the phones i am considering as an option to buy. I have come across threads/reviews which tell me that ,

1. Z2 cannot be serviced , atleast in india and you have to get it replaced for free within a month

2. After that they offer you 80% buyback discount for replacement.

Also, it has been evident from indian topic thread here that z2 has lot of build issues and i really don't want to invest 45k on a phone and then land up with a un-serviceable phone or getting into a situation where i have to spend another 20% of the cost for a new phone.

please advice.