Amazon India — Ridiculous response for customer service

Address:	Raipur, Chhattisgarh, 492001
Website:	www.amazon.in

I have ordered 2 shipment via order no. 402-[protected] and 402-[protected] on 13th aug'16 in prepaid throuhg amazon prime. As per the concept of prime order should get delivered within 48hrs. However till 17th even the order didn't got delivered and expected time i received for 23rd of aug'16. Is this the service???
When i tried to contact customer care they have denied to process my enquiry for billing address not matching in their record. However the same billing address was matching on 15th aug'16 call.

This is very ridiculous and very poor customer service.in amazon customer should order and leave the delivery on the mercy of amazon post paying. They will definitely deliver it post 1 month. I don't feel to shop further with amazon.