SEAGATE HARDRIVE IN WARRANTY/DAMAGED BUT REPLACEMENT IS CANCELLED BY SEAGATE COMPANY

i have send a hardrive from seagate which is a 500 gb external hardrive and has 5 years warranty till 2015.
the harddrive was used carefully all these years as no doubt it contained alll my important data but the USB pin of the hard drive became lose and it was not booting up so i sent it to chennai office for replacement and they have cancelled the replacement of the hardrive and will possible keep the harddrive to themselves or return me the faulty product. what is the use of such 5 years warranty then?
my details are akshay alone,
seagate replacement order number is Order Number: 1005212814
Return
Products
Model Number /
Part Number
Serial Number
Seagate
FREEAGENT
GO drive
0-RPM USB2.0
500 GB
ST905003FAM2E1-RK
9KV2MH-575
2GE6DQ71
my phone numbers are 9860446894/8237444027