Amazon - Amazon comanpy not deliver my order and defective item deliver

First order
Order date
**-Feb-****
Order #
***-*******-*******
Order total
*,***.** (* item) not deliver (refund my money after ** day )

Second order
Order date
**-Feb-****
Order #
***-*******-*******
Order total
*,***.** (* item) ( not deliver refund my money after *day)

Third order
Order date
**-Mar-****
Order #
***-*******-*******
Order total
*,***.** (* item) deliver but defective item not replace )
Sir mane * order kiya lenovo vibe k* * bar oder scussfully order place hua but * saman muje nahi mila pasa bapis mila after **,* days mari koi complaint nahi suni is company * bar Jo mobile mila bo defective tha mane inki complaint internet par consumer fourm par bhi ki lakin kush nahi hua national consumer help line ko bhi ki in logo me consumer help line ko bol diya ki customer satisfaction ho gayea ha sir kush nahi hua ab apka pata chala to apko bhi likh diya please help me .

Jatinder pal Singh
Mohali, Punjab
Cell +** **********