SG provides a 5 year warranty on all products, regardless of user type or geographical location. "Instaswap" is available from Seagate retailers (if you purchased it from there) if you verify the fault with SeaTools.

Seagate provides a new 5 year warranty on all units they RMA. As the warranty is from MANU date and the high turnover of stock it's usualy close to this date. If for whatever reason it's not you can just use the original RMA from the Seagate website and your reception date as the new warranty period.