Amazon — Product not delivered till date

Address:

Mumbai City, Maharashtra

I have ordered mobile from amazon on 27th april 2014 & opt for option fast delivery within 2 days, which promised delivery before 29th april 2014, i havent received product & got message from them saying product could not be delivered due to additional address requirement, so called amazon customer care, i received feedback from them on as incorrect address( as their courier agency couldn't locate address, practically it can not be case, as i am living in well known area, which can be easily located), after discussing with customer care on chat & call they agreed to deliver the product to me before 12 PM, 30th april 2014, but i have not received product yet, & now the thing is that their customer service centre are closed today due to elections in hyderabad, & i am trying to track status of my order, its still showing same status as it was yesterday, so it is clear that they have not put forward my issue, & now i am helpless, as i cant even talk with them, so i can call them tomarrow only, & they can say me reason tomorrow for not delivering product as "holiday in maharashtra for maharashtra day", so whats the use of providing fast delivery option by paying extra charges, so whats the use of false promises.