Venue 7 extend warranty

Hello Harish,

I recently bought a dell venue 7 tablet. I ve read in amazon reviews that I can extend my warranty on this product( to my surprise "harish" is the name of the guy who posted it their) :emotion-2:. I logged into dell and entered my service tag number upon request. Then a popup came saying call this number 1-866-777-1542. I dialed the number as it is ( I am from Hyderabad, India), but no result. Then I removed the 1 in the beginning and tried again, but it wasn't fruitful. It would be really helpful if you tell me which number to dial (i am from india) in order to extend my warranty on dell venue 7 tablet. Please bro help me.